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User Panel
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GA, USA
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Posted: 7/12/2019 5:10:33 PM EST
[Last Edit: Loonytik]
[#1]
DS Arms Enhanced BCG arrived....well machined. Can't say I'm a fan of the large logo but, I'll make that go away. Comes in between 147 and 148 grams on my scale depending on how it's sitting. My scale doesn't do decimals but, based on the PWD this is accurate.
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SC, USA
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Posted: 7/12/2019 7:55:37 PM EST
[Last Edit: pscot468]
[#2]
148 ounces? Is it made of adamantium or something? 😂 Lol just joking with ya, it's definitely the lightest bcg ever made. I don't think mine has the logo... Yep, just verified no logo on mine.
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Posted: 7/12/2019 8:23:11 PM EST
[#3]
147 OUNCES?
I think you intended to say Grams. If not, it’s the heaviest carrier in existence, it would have to be manufactured out of Osmium. |
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NV, USA
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Posted: 7/12/2019 8:45:45 PM EST
[#4]
DSA Sand Cut BCG
Change to a titanium cam pin, titanium firing pin, and added a RCA adjustable carrier key with titanium set screws, blue Loctite. Final weight 139 grams which converts to 4.90 ounces. Not the lightest but close and no aluminum was harmed by a Dremil tool. |
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Posted: 7/12/2019 9:04:58 PM EST
[#5]
Quote HistoryOriginally Posted By pscot468:. I built a lightweight 50 Beowulf pistol with a 12.5 barrel and a titanium muzzle brake on a Kaiser polymer receiver set. It's under 4.5 lbs with buis 😀 massive amounts of recoil though!!! It actually jettisons the QD sling point on the rear every time I fire it. Well I guess it's too long to legally be a pistol but it's a sweet "firearm" 😁 |
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GA, USA
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Posted: 7/12/2019 10:53:45 PM EST
[Last Edit: Loonytik]
[#6]
Quote HistoryOriginally Posted By pscot468:
148 ounces? Is it made of adamantium or something? 😂 Lol just joking with ya, it's definitely the lightest bcg ever made. I don't think mine has the logo... Yep, just verified no logo on mine. Quote HistoryOriginally Posted By pscot468:
148 ounces? Is it made of adamantium or something? 😂 Lol just joking with ya, it's definitely the lightest bcg ever made. I don't think mine has the logo... Yep, just verified no logo on mine. Originally Posted By PursuitSS:
147 OUNCES? I think you intended to say Grams. If not, it’s the heaviest carrier in existence, it would have to be manufactured out of Osmium. Yea, I'm not the logo type on anything and was surprised to see how big this one was. |
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Posted: 7/13/2019 3:54:12 AM EST
[#7]
Quote HistoryOriginally Posted By breastroker:
DSA Sand Cut BCG Change to a titanium cam pin, titanium firing pin, and added a RCA adjustable carrier key with titanium set screws, blue Loctite. Final weight 139 grams which converts to 4.90 ounces. Not the lightest but close and no aluminum was harmed by a Dremil tool. |
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SC, USA
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Posted: 7/13/2019 5:10:30 AM EST
[#8]
Quote HistoryOriginally Posted By backbencher: Oh Jesus. If you don't have a stock on it, and it doesn't have a VFG, and it's not mounted on a tripod, and it's got a rifled bbl of .50" or less, it can have an 87" bbl and it's still a pistol. |
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Posted: 7/13/2019 1:10:25 PM EST
[#9]
Quote HistoryOriginally Posted By pscot468:
Well no. Since my firearm is over 26 inches in length it falls into the same category as a 12/20 gauge pistol grip only firearm. I can legally put a vfg on it, see Franklin armory xo-26. Quote HistoryOriginally Posted By pscot468:
Originally Posted By backbencher:
Oh Jesus. If you don't have a stock on it, and it doesn't have a VFG, and it's not mounted on a tripod, and it's got a rifled bbl of .50" or less, it can have an 87" bbl and it's still a pistol. |
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SC, USA
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Posted: 7/13/2019 2:01:10 PM EST
[#10]
My FFL told me different but I guess from a legal standpoint it doesn't really matter what it's classified if it's over 26 inches the only thing that changes legally is you can put a vfg on it. Unless you live in a state that decides to "supplement" federal firearm laws 😂 The main thing to take away here is if you want to run a vfg on your short barreled ar without a buttstock that has a mil spec buffer tube you need an 11.5 in barrel or a 10.5 inch barrel with a permanently attached muzzle device to cover your ass legally.
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Posted: 7/15/2019 12:07:31 PM EST
[Last Edit: Bacon_Grease]
[#11]
Considering I had a renewed interest in a lightweight build and even did a calculation based on the first page.
I wanted to see if I could find some lighter weight parts that wouldn't break the bank. I too poor to be as awesome as you guys going 3lbs and under. And I found... this 
Now I know ebay and all that. But if all it's doing is keeping me from touching the barrel. has anyone had experience with these ebay "carbon fiber" handguards? Carbon fiber is in quotes because depending on the wording of the listing. They may just be plastic. 
https://www.ebay.com/itm/Lightest-Carbon-Fiber-Composite-Slim-M-LOK-Handguard-for-223-7-10-12-15/323542643206 |
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Posted: 7/15/2019 12:14:14 PM EST
[#12]
Page 1 info is super out of date...check the PWD for current info on the latest parts. Link in sig...
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NV, USA
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Posted: 7/15/2019 6:07:47 PM EST
[#13]
The CF handguards look good to go. I wouldn't attach the extra rails though. I only use the aluminum barrel nuts, the steel are way too heavy. The 10 inch look perfect for mid gas systems.
**Handguard Weights(with nut): 7 inch : 5.1 oz 10 inch : 6.3 oz 12 inch : 6.9 oz 15 inch : 8.2 oz |
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WA, USA
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Posted: 7/16/2019 1:19:32 PM EST
[Last Edit: JerDerv]
[#14]
I got an LWRC UCIW short receiver extension and spring for my pistol build. I cut a standard carbine buffer down to the correct length as well. The buffer can easily be made lighter but im waiting until i shoot it suppressed, i may want to toss a tungsten weight in there depending on how it cycles with the suppressor on.
EDIT: Sorry the pictures are so huge.... 3.35oz 
1.16oz 
.78oz 
Here is a shorter CMMG style sba3. This brace is shorter than the standard sba3. 
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IN, USA
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Posted: 7/16/2019 1:49:06 PM EST
[#15]
Is anyone using the Fostech Lite lower? Are are they crap that should be avoided?
Wanting to do a lightweight build but in sticker shock at the 2A lower prices. |
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Posted: 7/16/2019 3:25:58 PM EST
[#16]
Originally Posted By jekbrown:
Page 1 info is super out of date...check the PWD for current info on the latest parts. Link in sig... 
Originally Posted By breastroker:
The CF handguards look good to go. I wouldn't attach the extra rails though. I only use the aluminum barrel nuts, the steel are way too heavy. The 10 inch look perfect for mid gas systems. **Handguard Weights(with nut): 7 inch : 5.1 oz 10 inch : 6.3 oz 12 inch : 6.9 oz 15 inch : 8.2 oz |
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Posted: 7/16/2019 4:22:04 PM EST
[#17]
Quote HistoryOriginally Posted By safes2small:
Is anyone using the Fostech Lite lower? Are are they crap that should be avoided? If they have improved the process it would be great, but if they still are using a gravity casting process......not so good. |
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SC, USA
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Posted: 7/16/2019 8:56:38 PM EST
[#18]
I like the magnesium lowers, I've had 6 and no problems yet!
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NV, USA
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Posted: 7/17/2019 1:22:39 AM EST
[Last Edit: breastroker]
[#19]
Same here,, have 4 of the Mag Tactical and 3 of the Fostech lowers with zero problems. Of course I don't run tanks over them either.
I searched for many years before finally getting a Fostech upper, really like it. |
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WI, USA
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Posted: 7/18/2019 5:09:50 PM EST
[#20]
@ Bacon_grease,
I looked at those same handguards on ebay and after looking a bunch of different listings for them it appears they are simply polymer with a CF wrap or maybe hydrodip, but not totally carbon fiber at all. Hence the cheap price tag. But if you get them please post some real world pictures and give us your impression I'm interested to see if they are decent or not. |
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LA, USA
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Posted: 7/19/2019 9:42:21 AM EST
[#21]
Have you guys seen these?
DSI DS-15 M-Lok Free Float Skeletonized Forearm 15" - 7.4oz without barrel nut. I can't find this barrel nut anywhere, or at least one that's 7068 construction. It does look like it might use the Milspec nut. |
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Posted: 7/19/2019 9:58:19 AM EST
[Last Edit: jekbrown]
[#22]
I don't remember putting these in the pwd previously, but I'll check after work and add if necessary. Good looking rails. eBay faux-fiber ones as well...
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NV, USA
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Posted: 7/19/2019 5:49:05 PM EST
[#23]
What's with "or at least one that's 7068 construction"???? Is that some gold standard for barrel nuts?
To me an aluminum barrel nut is just aluminum. I will say I have purchased a lot of eBay handguards and ALWAYS use an aluminum barrel nut, even if I have to purchase it separately. The eBay handguards that say lite weight usually are very lightweight, you have to pay $100 to 250 more to get an ounce lighter. I built a bunch of 22 Nosler and 224 Valkyrie uppers last year. Heck I didn't even know you could get longer than 15 inches. But for my 24 inch barrels a 17 inch lightweight handguard looks better. Actually got a 19.25 inch handguard for my barrel with a plus 2 gas system length. Even the 17" didn't look right. Heck some of those uppers weighed more than two of my ultra light weight rifles. |
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LA, USA
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Posted: 7/19/2019 7:21:22 PM EST
[#24]
Quote HistoryOriginally Posted By breastroker:
What's with "or at least one that's 7068 construction"???? Is that some gold standard for barrel nuts? To me an aluminum barrel nut is just aluminum. I will say I have purchased a lot of eBay handguards and ALWAYS use an aluminum barrel nut, even if I have to purchase it separately. The eBay handguards that say lite weight usually are very lightweight, you have to pay $100 to 250 more to get an ounce lighter. I built a bunch of 22 Nosler and 224 Valkyrie uppers last year. Heck I didn't even know you could get longer than 15 inches. But for my 24 inch barrels a 17 inch lightweight handguard looks better. Actually got a 19.25 inch handguard for my barrel with a plus 2 gas system length. Even the 17" didn't look right. Heck some of those uppers weighed more than two of my ultra light weight rifles. |
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NV, USA
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Posted: 7/19/2019 10:49:26 PM EST
[#25]
So who else makes barrel nuts in that alloy? I don't understand the need for that particular alloy either.
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Posted: 7/20/2019 12:09:50 AM EST
[Last Edit: jekbrown]
[#26]
PWD updated with JerDervs recent stuff, user contributions on the PWD sheet, Dark Storm Ind, and the ebay seller.
...and Reptilia's stuff too... Also, I know it's late, but I can't believe that 'stroker is questioning the need for stronger aluminum alloys. What's gotten into you man? 
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NV, USA
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Posted: 7/20/2019 11:38:06 AM EST
[Last Edit: breastroker]
[#27]
Yes there is need for stronger aluminum alloys. But not at $$$$$$ prices and only if designed BETTER than Mil Spec.
The lithium alloy 2055 is great but almost doubles the price. Perhaps 2A could cut another ounce off their receivers, on this web site people were saying wow they could cut an ounce, Big Deal. And of course those who say go to the gym more. You know those who think a 7.5 pound AR15 or a 10 pound 308AR are great. I call these weights Safe Queens. Still wanting to see who manufacturers a barrel nut in 7068. I Googled this and could not find any mentioned AR parts. |
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LA, USA
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Posted: 7/20/2019 11:38:38 AM EST
[#28]
Quote HistoryOriginally Posted By breastroker:
So who else makes barrel nuts in that alloy? I don't understand the need for that particular alloy either. |
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Posted: 7/20/2019 12:23:09 PM EST
[#29]
There have been small runs of KMR bbl nuts in 7068 IIRC. Pretty sure they are in the PWD. Perfect app for that material. A push button safety made from 7068 would be the final lightweight evolution of that part...
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NV, USA
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Posted: 7/20/2019 12:28:22 PM EST
[Last Edit: breastroker]
[#30]
I looked at Master at Arms a while ago, $650 for a receiver set and not 7068, they used 7095. And they have zero stock.
Kind of like the titanium receiver set at $10,000 and it weights a lot more than a standard aluminum set. Yes stronger but to what advantage? Looked at V7, the pages for 7068 parts are all gone, might as well ben made of unobtanium. |
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Posted: 7/20/2019 1:11:47 PM EST
[Last Edit: jekbrown]
[#31]
At the higher end, you tend to get cheap, light, and strong, and you only get to pick two....so at the bleeding edge of light/strong you'll always have max cost. If you have a Ti cam pin or a Ti bolt catch, you're on the light/strong (but expensive) train. If you're in the sub 3.5# range, at least some of the parts on your gun are probably really expensive, for what they do, or you have the ability/resources to make/customize stuff yourself.
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Posted: 7/20/2019 7:41:51 PM EST
[Last Edit: PursuitSS]
[#32]
IF someone would offer a receiver set out of aluminum/scandium alloy they could thin them out quite a bit but then the issue of price rears its ugly head.
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Posted: 7/20/2019 10:12:38 PM EST
[#33]
That's why these more expensive/exotic materials make more sense in the small parts where there's still some stress...bolt catch, trigger parts maybe, safety, bbl nuts....making large pieces from this stuff would prolly be so crazy spendy that no one but Don Jr. would buy it.
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TX, USA
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Posted: 7/21/2019 1:12:58 PM EST
[#34]
Is there a well known BCG + buffer spring/weight combo that is generally found to be 100%?
Looking to build a medium to lightweight 16" rifle and wondering where the tuning starts with these. Would rather just assemble and go. |
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LA, USA
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Posted: 7/21/2019 3:16:48 PM EST
[#35]
Quote HistoryOriginally Posted By breastroker:
I looked at Master at Arms a while ago, $650 for a receiver set and not 7068, they used 7095. And they have zero stock. Kind of like the titanium receiver set at $10,000 and it weights a lot more than a standard aluminum set. Yes stronger but to what advantage? Looked at V7, the pages for 7068 parts are all gone, might as well ben made of unobtanium. |
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TX, USA
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Posted: 7/22/2019 8:54:11 AM EST
[#36]
Anyone know how much the Robar polymAR receivers weigh? I can't find any good numbers.
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SC, USA
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Posted: 7/22/2019 10:58:19 AM EST
[Last Edit: pscot468]
[#37]
Breastroker all of v7 and dark hour defense's aluminum barrel nuts are 7068. It is significantly stronger than 7075, stronger than lithium aluminum (not as corrosion resistant though), and stronger than scandium/aluminum alloy. It's not as strong as grade 5 or even grade v Eli titanium and the fatigue strength isn't even close but it is stronger per oz. Pursuit SS as for the scandium alloys they're not as strong as you would think but what they have is a fatigue strength that gets close to quality titanium. That's very important for a revolver frame, not so important for a receiver set. Mortimer as far as "drop in" lightweight bcg/buffer combos you're probably out of luck, just get adjustable gas and within 5 shots you should be able to get it right. Start fully closed, open 2 clicks/turns. Fire. If the brass doesn't eject 2 more clicks/turns. Repeat until brass ejects. Start doing 1 click/turn and fire until your bolt locks open. Do 2-4 more clicks for reliability depending on whether you have a carbine or mid length/intermediate gas system. Less clicks the longer the gas system. Unless your gas system adjustment has a detent or something to keep it from backing out SECURE WITH THREAD LOCKER!!! I personally like the ds arms sand cut aluminum bcg, taccom buffer, and Nemo 300 blk subsonic spring. Lowest weight and recoil if you tune it right. Unfortunately when it comes to adjustable gas systems anything you do to reduce weight or recoil will reduce your reliability. If you plan on relying on your rifle for defense stick to the heaviest/strongest you can get away with without short stroking.
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Posted: 7/23/2019 2:50:19 AM EST
[#38]
Quote HistoryOriginally Posted By j_cobbers:
@ Bacon_grease, I looked at those same handguards on ebay and after looking a bunch of different listings for them it appears they are simply polymer with a CF wrap or maybe hydrodip, but not totally carbon fiber at all. Hence the cheap price tag. But if you get them please post some real world pictures and give us your impression I'm interested to see if they are decent or not. I did order the 10" though so I should find out relatively soon how viable it is. |
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Posted: 7/23/2019 9:54:28 PM EST
[#39]
Don't forget to post weights, here or in the PWD, either way.
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Posted: 7/24/2019 1:18:24 PM EST
[#40]
Should be meeting with Joel of V7 next month, anything new from them you'd like to see? I'll pass it along
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GA, USA
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Posted: 7/24/2019 2:14:05 PM EST
[#41]
Quote HistoryOriginally Posted By withoutremorse42:
Should be meeting with Joel of V7 next month, anything new from them you'd like to see? I'll pass it along 
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SC, USA
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Posted: 7/24/2019 2:14:27 PM EST
[#42]
Aluminum 308 barrel nuts!!!
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Posted: 7/24/2019 2:17:29 PM EST
[#43]
I'd like to see a wedge lock rail in 2099.
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WA, USA
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Posted: 7/24/2019 3:33:35 PM EST
[#44]
Budget oriented lightweight forged receiver sets from dark hour defense.
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Posted: 7/24/2019 3:47:42 PM EST
[#45]
Quote HistoryOriginally Posted By withoutremorse42:
Should be meeting with Joel of V7 next month, anything new from them you'd like to see? I'll pass it along |
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Posted: 7/24/2019 4:17:45 PM EST
[#46]
Cav Arms Mk 3 lowers.
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NV, USA
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Posted: 7/24/2019 6:48:44 PM EST
[#47]
"7068 push button safety. Titanium adjustable gas key. Ti cam pins" Both for the AR15 and for the 308AR
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LA, USA
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Posted: 7/24/2019 9:24:11 PM EST
[#48]
Quote HistoryOriginally Posted By jekbrown: 7068 push button safety. Titanium adjustable gas key. Ti cam pins. |
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LA, USA
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Posted: 7/24/2019 9:24:41 PM EST
[#49]
Quote HistoryOriginally Posted By breastroker:
"7068 push button safety. Titanium adjustable gas key. Ti cam pins" Both for the AR15 and for the 308AR |
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NV, USA
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Posted: 7/25/2019 1:38:58 AM EST
[#50]
Don't need another small frame AR10, it is easy to build a 5 pound large frame 308 or 6.5 Creedmoor. My 308AR is 3.88 pounds now. Not sure anyone needs one this lite though.
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