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BCA bolt action upper for $350? (Page 13 of 21)
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Originally Posted By cnoteleo: That was with the Unitah, which uses a shorter bolt. I was looking to see if someone has modified a poor boy special. So, what you see a page back is proof of concept of a bullpup on the A3 Industries' Triad FM bullpup package working with the BCA upper. (The Triad has the core components, then packages to work with different brands of upper.) The bullpup setup has connection points between the upper and the lower + chassis are the upper lugs / pivot & takedown pins and an m-lok mounted attachment point on bottom of the rail. The Unitah + BCM MCMR should produce identical connection points as a BCA bolt-action upper receiver + BCM MCMR. Because that bullpup chassis uses m-lok rail for the front connection point, any rail with similar width and spacing to the MCMR could be used to do the same thing with the BCA b-a upper. As far as the bolt length, either: 1) cut down the BCA bolt or 2) use the butt stock extension piece in combination with either: 1) a short buffer tube or a cut-down pistol buffer tube with a castle nut in place of the buffer plug or 2) drill it out the buffer plug they give you wide enough to accommodate the bolt's wings Even simpler is the SRU Precision SARB-15. It is a more versatile bullpup setup out of the box, accommodating shortened buffer systems from the get-go (such as the Kentri and DFA MCS). Using that setup, the BCA upper should be a drop in. |
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Originally Posted By PreacherOfGadget: Even simpler is the SRU Precision SARB-15. It is a more versatile bullpup setup out of the box, accommodating shortened buffer systems from the get-go (such as the Kentri and DFA MCS). Using that setup, the BCA upper should be a drop in. Can confirm. Upper and mag are 6.5 Grendel. Cycles just fine using the stub receiver extension provided with the SARB-15. Not a huge fan of having the scope mounted on the handguard. As an average sized guy, LOP does not bother me at all.  |
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Anyone shooting theirs? Took both the 10 and 15 out twice this weekend. The 15 got rebarreled again, this time to a 10.5 PSA 1-7 just to accuracy test. It was around 6" with my 77gn match load and around 2" with some 55grn SP loads. Meh. 55grn were clocking in at 2695 so that was neat. The 10 is still wearing a 22" 308 barrel but being used to accuracy test some tightgroup subsonic loads while waiting on it's 16" 308 barrel. I'm pretty excited about this load as it's the first promise any of my subs have shown. With mixed brass and 175 Smk pulls or seconds it'll put 5 in inch and a half ish with 3 or 4 being half inchish. 7.5 grns of tightgroup is giving me 1090fps from the 22" and 1020 from the 16" sfar. The ruger sfar really likes them. Will probably go 7.6 grains in the next load for the BA 16" that's coming. Also tried a couple groups with the 190 subx bullets and 7.5grn TG. They all look like they'll shoot. Attached File Attached File Attached File 20" ba 556 barrel with my 77grn handloads. Attached File |
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Originally Posted By Cycolac: Got my 400 Legend upper. What am I in for? A good time? I don't think anyone has had any real issues with these. Sure they're a bit rough but seem to function fine. Just depends on if your $50 barrel is $50 accurate or $100 accurate. |
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Originally Posted By bendigo78: A good time? I don't think anyone has had any real issues with these. Sure they're a bit rough but seem to function fine. Just depends on if your $50 barrel is $50 accurate or $100 accurate. Originally Posted By bendigo78: Originally Posted By Cycolac: Got my 400 Legend upper. What am I in for? A good time? I don't think anyone has had any real issues with these. Sure they're a bit rough but seem to function fine. Just depends on if your $50 barrel is $50 accurate or $100 accurate. Many years ago one of the gun writers was explaining that higher prices for guns was more like an insurance policy that it would be more accurate/reliable but that cheaper guns were often capable of the same accuracy/reliability just without the guarantee. Over the years I have seen quite a few less expensive guns that were plenty accurate and reliable. YMMV |
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Originally Posted By Cycolac: Many years ago one of the gun writers was explaining that higher prices for guns was more like an insurance policy that it would be more accurate/reliable but that cheaper guns were often capable of the same accuracy/reliability just without the guarantee. Over the years I have seen quite a few less expensive guns that were plenty accurate and reliable. YMMV Originally Posted By Cycolac: Originally Posted By bendigo78: Originally Posted By Cycolac: Got my 400 Legend upper. What am I in for? A good time? I don't think anyone has had any real issues with these. Sure they're a bit rough but seem to function fine. Just depends on if your $50 barrel is $50 accurate or $100 accurate. Many years ago one of the gun writers was explaining that higher prices for guns was more like an insurance policy that it would be more accurate/reliable but that cheaper guns were often capable of the same accuracy/reliability just without the guarantee. Over the years I have seen quite a few less expensive guns that were plenty accurate and reliable. YMMV Dont get me wrong, I'm a budget rifle slut and an accuracy snob. I've spent 3-5k a year at psa for almost 20 years. I bought a complete 16" upper with 15" mlok hg once for $179 just because it was the cheapest I've ever seen. Actually shot well. Inchish at 100. Borescoped it for giggles once when I was cleaning it and found that it had 2 sets of rifling. A deep 1-7 and a shallower slow twist on top. Theres just so many shills on youtube that give people false expectations of rifle capability. Then they complain here that they fed the cheapest ar the cheapest ammo and are getting cheap results. Bear creek can be accurate and if it is be thankful but dont be surprised if that accuracy comes and goes depending on barrel fouling. They can be casually reliable. They are not 1000rnd weekend class reliable. |
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Regarding handguards, I actually kept mine on the 5.56 While it is pretty heavy for what it is, I can't flex the damn thing if I tried. I might mount a red dot on the receiver, and one on the handguard just to see how much of a POI change there is between the two. |
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Originally Posted By vmpglenn: Can confirm. Upper and mag are 6.5 Grendel. Cycles just fine using the stub receiver extension provided with the SARB-15. Not a huge fan of having the scope mounted on the handguard. As an average sized guy, LOP does not bother me at all. https://personal.visualitymedia.com/personal/bullpupbolt.jpg It strikes me that if you want more rigidity in the optic's connection to the receiver, a full m-lok upper rail, and then a riser that connects the two, like the rails that connect the handguard to the receiver on a MK12 might be a good way to go. And I like the looks of your build. |
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Originally Posted By bendigo78: Dont get me wrong, I'm a budget rifle slut and an accuracy snob. I've spent 3-5k a year at psa for almost 20 years. I bought a complete 16" upper with 15" mlok hg once for $179 just because it was the cheapest I've ever seen. Actually shot well. Inchish at 100. Borescoped it for giggles once when I was cleaning it and found that it had 2 sets of rifling. A deep 1-7 and a shallower slow twist on top. Theres just so many shills on youtube that give people false expectations of rifle capability. Then they complain here that they fed the cheapest ar the cheapest ammo and are getting cheap results. Bear creek can be accurate and if it is be thankful but dont be surprised if that accuracy comes and goes depending on barrel fouling. They can be casually reliable. They are not 1000rnd weekend class reliable. Originally Posted By bendigo78: Originally Posted By Cycolac: Originally Posted By bendigo78: Originally Posted By Cycolac: Got my 400 Legend upper. What am I in for? A good time? I don't think anyone has had any real issues with these. Sure they're a bit rough but seem to function fine. Just depends on if your $50 barrel is $50 accurate or $100 accurate. Many years ago one of the gun writers was explaining that higher prices for guns was more like an insurance policy that it would be more accurate/reliable but that cheaper guns were often capable of the same accuracy/reliability just without the guarantee. Over the years I have seen quite a few less expensive guns that were plenty accurate and reliable. YMMV Dont get me wrong, I'm a budget rifle slut and an accuracy snob. I've spent 3-5k a year at psa for almost 20 years. I bought a complete 16" upper with 15" mlok hg once for $179 just because it was the cheapest I've ever seen. Actually shot well. Inchish at 100. Borescoped it for giggles once when I was cleaning it and found that it had 2 sets of rifling. A deep 1-7 and a shallower slow twist on top. Theres just so many shills on youtube that give people false expectations of rifle capability. Then they complain here that they fed the cheapest ar the cheapest ammo and are getting cheap results. Bear creek can be accurate and if it is be thankful but dont be surprised if that accuracy comes and goes depending on barrel fouling. They can be casually reliable. They are not 1000rnd weekend class reliable. 👍 I picked this one to have in case I need it for hunting in a straight wall rifle cartridge area. Plus it's something to tinker with. At the price point it is almost a no-brainer. I've got a Griffin Bushwhacker 46 I'm going to try on it to see how it sounds. |
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Originally Posted By bendigo78: Dont get me wrong, I'm a budget rifle slut and an accuracy snob. I've spent 3-5k a year at psa for almost 20 years. I bought a complete 16" upper with 15" mlok hg once for $179 just because it was the cheapest I've ever seen. Actually shot well. Inchish at 100. Borescoped it for giggles once when I was cleaning it and found that it had 2 sets of rifling. A deep 1-7 and a shallower slow twist on top. Theres just so many shills on youtube that give people false expectations of rifle capability. Then they complain here that they fed the cheapest ar the cheapest ammo and are getting cheap results. Bear creek can be accurate and if it is be thankful but dont be surprised if that accuracy comes and goes depending on barrel fouling. They can be casually reliable. They are not 1000rnd weekend class reliable. Originally Posted By bendigo78: Originally Posted By Cycolac: Originally Posted By bendigo78: Originally Posted By Cycolac: Got my 400 Legend upper. What am I in for? A good time? I don't think anyone has had any real issues with these. Sure they're a bit rough but seem to function fine. Just depends on if your $50 barrel is $50 accurate or $100 accurate. Many years ago one of the gun writers was explaining that higher prices for guns was more like an insurance policy that it would be more accurate/reliable but that cheaper guns were often capable of the same accuracy/reliability just without the guarantee. Over the years I have seen quite a few less expensive guns that were plenty accurate and reliable. YMMV Dont get me wrong, I'm a budget rifle slut and an accuracy snob. I've spent 3-5k a year at psa for almost 20 years. I bought a complete 16" upper with 15" mlok hg once for $179 just because it was the cheapest I've ever seen. Actually shot well. Inchish at 100. Borescoped it for giggles once when I was cleaning it and found that it had 2 sets of rifling. A deep 1-7 and a shallower slow twist on top. Theres just so many shills on youtube that give people false expectations of rifle capability. Then they complain here that they fed the cheapest ar the cheapest ammo and are getting cheap results. Bear creek can be accurate and if it is be thankful but dont be surprised if that accuracy comes and goes depending on barrel fouling. They can be casually reliable. They are not 1000rnd weekend class reliable. Very true statement. My most used range toys are cheap builds. I don't care what roll mark anything has. Most of the stuff I have put together consists of an Anderson lower and a BCA upper. They have all worked without issue. If at some point it didn't, I would tinker with it and try to make it work right. Building/ tinkering and messing with stuff is easily better than 50% of the overall enjoyment for me. I don't want to dedicate enough of my budget to run large round counts through any of my stuff except 22LR. I doubt any of my centerfire rifles will see anything beyond a few thousand rounds each (total) so the need for me to have a rifle with a 5-10k round life expectancy is about nonexistent. Since I like to tinker, I have plenty of spare parts should I need to make a repair. Thats not to say I don't shoot, on any given day after work I can grab a few mags, go for a hike on my back 40 put some rounds down my 50-yard rifle range and then wonder back to my house. I have a variety of range plinkers but my current go-to is a BCA dedicated 22LR upper and I enjoy the heck out of. Eats every type of 22LR I put in it. Not the most accurate but I pretty much just ring steel at various short ranges accomplished with a cheap Bushnell red dot on it. My second favorite at the moment is the 7.62x39 BCA bolt action with a Vortex 1-4 on top. In contrast my primary hunting rifle that I actually carry for a purpose is a Howa super lite in 308 topped with a Leupold 3-9. I hike many miles when hunting so the best tool possible in this particular roll for me makes sense. |
Originally Posted By ar-jedi:
SO MUCH WIN IN ONE POST IT COULD CRASH ARFCOM !!!
SO MUCH WIN IN ONE POST IT COULD CRASH ARFCOM !!!
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Originally Posted By Cycolac: 👍 I picked this one to have in case I need it for hunting in a straight wall rifle cartridge area. Plus it's something to tinker with. At the price point it is almost a no-brainer. I've got a Griffin Bushwhacker 46 I'm going to try on it to see how it sounds. Itll be perfect for that. I've enjoyed the 2 I have been playing with. Just put a second barrel on the 10 and ordered what'll be the 4th for the 15. I've got the hybrid 46M for a 44mag/450/458 sub gun if I ever get my mind made up on the cartridge. |
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Originally Posted By thederrick106: Very true statement. My most used range toys are cheap builds. I don't care what roll mark anything has. Most of the stuff I have put together consists of an Anderson lower and a BCA upper. They have all worked without issue. If at some point it didn't, I would tinker with it and try to make it work right. Building/ tinkering and messing with stuff is easily better than 50% of the overall enjoyment for me. I don't want to dedicate enough of my budget to run large round counts through any of my stuff except 22LR. I doubt any of my centerfire rifles will see anything beyond a few thousand rounds each (total) so the need for me to have a rifle with a 5-10k round life expectancy is about nonexistent. Since I like to tinker, I have plenty of spare parts should I need to make a repair. Thats not to say I don't shoot, on any given day after work I can grab a few mags, go for a hike on my back 40 put some rounds down my 50-yard rifle range and then wonder back to my house. I have a variety of range plinkers but my current go-to is a BCA dedicated 22LR upper and I enjoy the heck out of. Eats every type of 22LR I put in it. Not the most accurate but I pretty much just ring steel at various short ranges accomplished with a cheap Bushnell red dot on it. My second favorite at the moment is the 7.62x39 BCA bolt action with a Vortex 1-4 on top. In contrast my primary hunting rifle that I actually carry for a purpose is a Howa super lite in 308 topped with a Leupold 3-9. I hike many miles when hunting so the best tool possible in this particular roll for me makes sense. I'm the guy that puts an $800 barrel on a $400 rifle and puts it into a $1000 chassis. I find no pride in buying perfection. I have to tinker and learn the entire system. I hate bca ar15s because people will have me look at their misbehaving rifle and if it's a bca there is no telling where it's out of spec. It's like they lay awake at night thinking of ways to screw up the manufacturing process. One had an out of spec firing pin hole. Rifle would choke at almost exactly 200 round after cleaning and not run after that. It was because that's how many cookie cutter primer disks could fit inside the bolt before it bound up and couldnt rotate. You'd pull the firing pin out of the bolt and they would pour out of there like sand. Had a colt that was doubling come in. The disconnector was stamped weird. Put a psa in it (giggled) and sent it home. |
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I finally got my spacers. Damn is this getting smoother. I decided to forego the spring washers. It's debatable that they even keep screws.from loosening, and it's a steel on steel engagement to begin with. Otherwise 3/4" screws were still too long, and 5/8 was a hair too short. Without the washers the screws were perfect imo Curious how the spacers hold up. MJF - Nylon PA12GB - Black Vapor Smoothing looks pretty damn good to me. |
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Found that the bolt relocation bracket will definitely work with the bc10. Hardware needed are 10-32 3/4" cap or pan head screws 10-32 3/8" flat head screws 10-32 Nuts. Had to touch the nuts on the belt sander to get them to center on the holes. Then touch the heads so the didnt contact the receiver. 308 got it's new ba 16" barrel and 15" handgaurd Attached File Bc15 is waiting on its 7.5" faxon 300blk barrel Attached File |
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Originally Posted By AL1EN: I cut down my bcg to fit the FM ranch lower but I still feel the back of the bcg has some drag when moving it to the rear. Thinking about tapering the back of the bcg giving it a boat tail. Anyone try that yet? Did you cut it off after it steps down or did you cut off all of smaller diameter of the rear? If the step down is still there it probably not your issue. The hammer pushes up on the carrier even when cocked so there's some drag there. I polished the bottom of my carrier, the face of my hammer, and anything sticking off the top of the bolt with a scotch brite buffer wheel and polishing wheel. It may just need some oil. |
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| Why do you think it's the bolt tail dragging and not another part of the carrier? I ask, because there is a downside: once you start reducing the full-diameter section of the carrier, you'll start increasing the slop in the carrier's movement as that's all bearing surface. (I'm not assuming you're wrong, just trying to understand better.) |
| These are good points maybe it is dragging over the top of the hammer on the way back. Reason I was thinking it was the side of the bcg is because I see a witness mark on the back right side when cycling. I use dry molly lube on the bcg so I can see where the ware is at. Minus the witness mark, the drag could be the hammer I’ll pay more attention. |
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 Well, we've gone past the point of putting lipstick on a pig. Lipstick on a bear I guess. Side by side with the OG for comparison. Unfortunately I forgot to tell the cerakoter to not cerakote the insides of the upper and they laid it on THICK, this thing is sticky and stiff. Going to have to go at it with a dowel rod and some 1000 grit on the bearing surfaces and bolt handle channel I guess. |
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Originally Posted By WyattC: https://i.postimg.cc/TYsm048p/bca.jpg Well, we've gone past the point of putting lipstick on a pig. Lipstick on a bear I guess. Side by side with the OG for comparison. Unfortunately I forgot to tell the cerakoter to not cerakote the insides of the upper and they laid it on THICK, this thing is sticky and stiff. Going to have to go at it with a dowel rod and some 1000 grit on the bearing surfaces and bolt handle channel I guess. That looks great through. Could you show what you did to the bolt so it works without the buffer tube? I'm almost convinced to get a 6.5 Grendel for caribou hunting. |
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Originally Posted By bendigo78: Found that the bolt relocation bracket will definitely work with the bc10. Hardware needed are 10-32 3/4" cap or pan head screws 10-32 3/8" flat head screws 10-32 Nuts. Had to touch the nuts on the belt sander to get them to center on the holes. Then touch the heads so the didnt contact the receiver. 308 got it's new ba 16" barrel and 15" handgaurd https://www.ar15.com/media/mediaFiles/26018/20250708_193220_jpg-3582988.JPG Bc15 is waiting on its 7.5" faxon 300blk barrel https://www.ar15.com/media/mediaFiles/26018/20250708_200657_jpg-3582989.JPG Glad he got it made up for you! |
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Topics Covered in Each Page Because repeat questions are getting more common * Discussions of most price changes/sales excluded from index
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Originally Posted By VTD: Awesome!!! Glad he got it made up for you! Yep, took care of me for sure. Just got off the range shooting them and that bracket is mandatory for the 308 sized rifle. I can now run the bolt without getting off the gun. I still have to work on the extractor. You have to slap the bolt hard to get the extractor to snap over the rim. |
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Shot a lot of 308 subsonic today. That was alot of fun. They are stupid accurate. The new Ba barrel did well even though it hadn't been properly broke in. I think itll tighten up more if it gets a few hundred full power loads. Picked up a couple of the fired bullets off the berm and the rifling grooves on them are sharp. Anyway the 308 is damn neat. Fits in a 28" rifle case and full power loads thump with minor recoil. Next up I need to get a scope on it that has precise enough adjustment to adjust poi from subs to supers on the fly and lessen the extractor spring pressure. The pocket sniper is on my S### list. 300blk subs out of a short barrel suck accuracy wise. 4 barrels times 10 loads and nothing does better than 3" and that's usually the best of the day. Ive never seen anyone on the internet achieve decent accuracy with them and now I know why. I'd try some supers but I just dont care about them in that package. Also that strike brace is hell on the shoulder with any recoil. Here's some pics. Attached File Attached File |
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Originally Posted By WyattC: I had great luck with Callaway 220gr subs out of my mini fix, 2-2.5 inch groups at 200yds with an 8in barrel. Might just be an ammunition problem. Maybe, but 4 different bullets, 3 different powders, 3 different twist rates and not a single ray of light at the end of the tunnel with this caliber. Maybe it's the scope. |
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Originally Posted By bendigo78: Maybe, but 4 different bullets, 3 different powders, 3 different twist rates and not a single ray of light at the end of the tunnel with this caliber. Maybe it's the scope. I wanted to make a joke about the scope not being tightened down securely, but trying a different optic and mount is probably a smart idea. |
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Originally Posted By PreacherOfGadget: I wanted to make a joke about the scope not being tightened down securely, but trying a different optic and mount is probably a smart idea. Maybe the cheap scope died but this scope did great on a good 556 barrel and it's not like its seeing any recoil with subs. I've seen guns with scopes moving in the mount shoot better. Maybe I need to step up to the 220grn sized bullets. Shopping for scopes and bullets this morning. |
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What handguard is on that 7”? I want to pick one up. |
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Originally Posted By AL1EN: What handguard is on that 7”? I want to pick one up. That is a 6.5" from cdnn. It's about the only hg I've found that plays nice with a 7.5" barrel and my asr mounts. I ground the anti rotation tabs of to get it to work with the bc15 upper. $20 6.5" Mlok Handgaurd |
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Updated bullpup setup. Works pretty darned well. I like having the bolt handle closer to my face. The Amend2 10 round mags feed Grendel very smoothly.  |
Scepticism is an exercise, not a life; it is a discipline fit to purify the mind of prejudice and render it all the more apt, when the time comes, to believe and to act wisely. -- George Santayana
Never mistake a clear view for a short distance.
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Originally Posted By vmpglenn: Updated bullpup setup. Works pretty darned well. I like having the bolt handle closer to my face. The Amend2 10 round mags feed Grendel very smoothly. https://personal.visualitymedia.com/personal/65g_bullpup_bolt_1600.jpg Did the same thing with a Uintah 6ARC upper, honestly the BCA upper probably benefits from the bolt handle being further forward when setup like this. |
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Originally Posted By WyattC: Did the same thing with a Uintah 6ARC upper, honestly the BCA upper probably benefits from the bolt handle being further forward when setup like this.l 
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Late to the party  .Ordered a bolt action upper from another company back in December. Haven't heard a thing from them. Saw this thread, and ordered a 7.62x39 upper. Followed the info to smooth the action. Thank to everyone posting. Definitely better, but still catches on extraction. Saw some posts about pushing the bolt to the left would help. It did. Messed around with it, trying to improve things. Ended up wrapping electrical tape around the left rear wing of the bolt carrier. Think it was 5 wraps.   Greased it up and it runs smoother. Less catching on extraction/retracting the bolt. Cycled it 50 times or so. A more permanent solution may be some type of spring loaded pin on the left wing? Short bolt so far....  |
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Originally Posted By Hilljack: Late to the party .Ordered a bolt action upper from another company back in December. Haven't heard a thing from them. Saw this thread, and ordered a 7.62x39 upper. Followed the info to smooth the action. Thank to everyone posting. Definitely better, but still catches on extraction. Saw some posts about pushing the bolt to the left would help. It did. Messed around with it, trying to improve things. Ended up wrapping electrical tape around the left rear wing of the bolt carrier. Think it was 5 wraps. https://imgpond.novarata.net/uploads/2025/07/bt9.jpg https://imgpond.novarata.net/uploads/2025/07/bs9.jpg Greased it up and it runs smoother. Less catching on extraction/retracting the bolt. Cycled it 50 times or so. A more permanent solution may be some type of spring loaded pin on the left wing? Short bolt so far.... https://imgpond.novarata.net/uploads/2025/07/bca9.jpg Does yours catch when running ammo through it? Mine catches when cycling the action empty, but it doesn't with a loaded mag and ammo in it. Works best when I cycle the bolt with a purpose if you will. Also 7.62x39. I did not do any of the porting or polishing. The more I run cheap steel cased ammo through it the better it seems to get. |
Originally Posted By ar-jedi:
SO MUCH WIN IN ONE POST IT COULD CRASH ARFCOM !!!
SO MUCH WIN IN ONE POST IT COULD CRASH ARFCOM !!!
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Originally Posted By Hilljack: It runs better with ammo, but still has difficulty retracting the bolt from time to time. If your electrical tape idea helps a little, maybe try some UHMW surface tape? I knew they made tape for friction points but had to google it to find out what it was called. There might be more variations of this out there? Attached File https://www.amazon.com/dp/B08CFZQVQ4?tag=arfcom00-20 |
Originally Posted By ar-jedi:
SO MUCH WIN IN ONE POST IT COULD CRASH ARFCOM !!!
SO MUCH WIN IN ONE POST IT COULD CRASH ARFCOM !!!
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That's interesting, thanks for posting it. Took it out again today, seemed smoother with the taped tail. Had difficulty extracting some brass cases. They were stuck a bit. Maybe that was the issue I had, stuck case, not bolt carrier issue? Russian 196 grain subsonic ammo is running about 1100 fps. Not really subsonic. Loaded some 220 grain bullets. Had good accuracy, but the powder I used was too slow burning and loud. |
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Any of you guys cut your Bolt Carrier with a hack saw? I don't really trust my self with power tools unless I cut a bit longer than I am planning.  Most modifications I do with hand tools/files honestly. Just the hardness of this steel concerns me a bit. I have a left over FM-15 Picatinny thing. It also has a Delrin buffer which is giving me ideas... Delrin bolt stop for the BCA bolt? Basically just cut it enough to work with this type of lower. Attached File |
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Originally Posted By Capt_Destro: Any of you guys cut your Bolt Carrier with a hack saw? I don't really trust my self with power tools unless I cut a bit longer than I am planning. Most modifications I do with hand tools/files honestly. Just the hardness of this steel concerns me a bit. I have a left over FM-15 Picatinny thing. It also has a Delrin buffer which is giving me ideas... I used one of these carbide powder blades, it took a few minutes per side and some oil, but it made a clean cut. https://www.amazon.com/dp/B00ESWLB0E |
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Originally Posted By Capt_Destro: Any of you guys cut your Bolt Carrier with a hack saw? I don't really trust my self with power tools unless I cut a bit longer than I am planning. Most modifications I do with hand tools/files honestly. Just the hardness of this steel concerns me a bit. I have a left over FM-15 Picatinny thing. It also has a Delrin buffer which is giving me ideas... Delrin bolt stop for the BCA bolt? Basically just cut it enough to work with this type of lower. https://www.ar15.com/media/mediaFiles/333164/FMLOWER-G2F-MFT-scaled_jpg-3589828.JPG A buddy with a battery band saw came over and we cut 3 and cleaned them up on a belt sander. Used a cmmg and strike industries picatinny adapters. |
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BCA bolt action upper for $350? (Page 13 of 21)
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