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Simple fix for the rear takedown detent spring blues.... (Page 5 of 6)
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Originally Posted By gafirefighter20B: I just started my build and this was the first thing I did on my new lower. My question is for the guys who have done it. Did you use anti seize on the set screw? And if so what did you use? I don't plan to take the screw back out but if I do I would like the threads to stay in place. I have used anti seize for years for spark plugs in aluminum heads. Just about every compound I have seen from loctite and permatex has some amount of graphite in it (even the copper based). I put a little of my kg-11 moly grease I use on receiver and barrel nut threads on mine. |
A generation which ignores history has no past — and no future.
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Originally Posted By coldblue:
I use a short section from a gas tube to help guide the detent, shortened spring, set screw and wrench into position. You mentioned this in the KAC forum and I've been doing it since. This is very good advice. |
www.boltcarrier.com • ✉ [email protected] • ☎ 407-308-2926 • ⚔ Certified SR-25 Armorer • sr15mod2.com • sr25e2.com
| I fell victim to this today... I was looking for a link to an active "kit" but didn't find one. For now I'm just sourcing another spring. Citizen's Armory is out so I'll just use a spring from a Bic lighter until I can get the rear replacement. I also noticed that Citizen's Armory has PMAGs 30rd for $11.55 each with free shipping on orders over $100. |
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Originally Posted By harleyms:
I found the set screws at Fastenal.....had to buy a pack of 100, so after a buddy and I did all ours I now have about 90 left. Anyone need some? lol I'll take 6 or 8 ..........IF you let me pay for them and the postage...... 
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Endowment Member NRA,Life Member 2nd Amendment Foundation,NRA certified Personal Protection and Basic Pistol Instructor.
| Years of working with HVAC equipment makes me leary of this modification- if the socket head rusts out it will be a bitch to to drill a hardened piece of steel out of an aluminum receiver - I would rather buy a dozen spare detents and springs than mess up a lower - |
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Originally Posted By oldbigbang: Years of working with HVAC equipment makes me leary of this modification- if the socket head rusts out it will be a bitch to to drill a hardened piece of steel out of an aluminum receiver - I would rather buy a dozen spare detents and springs than mess up a lower - |
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Originally Posted By PFran42:
That's why you buy stainless. Originally Posted By PFran42:
Originally Posted By oldbigbang:
Years of working with HVAC equipment makes me leary of this modification- if the socket head rusts out it will be a bitch to to drill a hardened piece of steel out of an aluminum receiver - I would rather buy a dozen spare detents and springs than mess up a lower - And to think I was bummed when that is all my local Ace Hardware had and I had to pay 29 cents a piece. Good deal! |
LCpl. Nigel K. Olsen March 4th, 2010 Southern Helmand Province Afghanistan
LCpl. Carlos C. Aragon March 1st, 2010 Southern Helmand Province Afghanistan
LCpl. Carlos C. Aragon March 1st, 2010 Southern Helmand Province Afghanistan
| This is how my seekins came today. I first got the thing installed without trimming the 5-6 coils off of the spring and man was it a PITA. I read the instructions and took out the allen set screw, clipped the spring, and it went in super easy and now I can not worry about it coming out in the future. The Seekins places the pin hole in the hand guard area and not the receiver extension like most forged lowers do though. |
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Originally Posted By The_Punisher:
I didn't realize both the Spikes lowers I just picked up were threaded until I was installing the LPK's Any cons to using one of these, other than the protruding head? <a href="http://s66.photobucket.com/user/the___Punisher/media/9B530B3F-D31A-4FCA-B244-8EB72CAFDF0D_zpsu6odmrwr.jpg.html" target="_blank">http://i66.photobucket.com/albums/h251/the___Punisher/9B530B3F-D31A-4FCA-B244-8EB72CAFDF0D_zpsu6odmrwr.jpg</a> <a href="http://s66.photobucket.com/user/the___Punisher/media/E1156945-5747-4996-9A28-8DCEEDF2980E_zpshjwzo0dx.jpg.html" target="_blank">http://i66.photobucket.com/albums/h251/the___Punisher/E1156945-5747-4996-9A28-8DCEEDF2980E_zpshjwzo0dx.jpg</a> Am I missing something? How does the receiver end plate sit flush with that screw head protruding into that space? |
"...I think I speak for all of us when I say that Obama and everyone who voted for him can fornicate themselves with an iron stick. "
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Originally Posted By The_Punisher:
I didn't realize both the Spikes lowers I just picked up were threaded until I was installing the LPK's Any cons to using one of these, other than the protruding head? Uh yeah, the protruding head 
Also, Aero made/makes lowers for a lot of other companies, Spikes included. |
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Originally Posted By ScottS:
Am I missing something? How does the receiver end plate sit flush with that screw head protruding into that space? Originally Posted By ScottS:
Originally Posted By The_Punisher:
I didn't realize both the Spikes lowers I just picked up were threaded until I was installing the LPK's Any cons to using one of these, other than the protruding head? <a href="http://s66.photobucket.com/user/the___Punisher/media/9B530B3F-D31A-4FCA-B244-8EB72CAFDF0D_zpsu6odmrwr.jpg.html" target="_blank">http://i66.photobucket.com/albums/h251/the___Punisher/9B530B3F-D31A-4FCA-B244-8EB72CAFDF0D_zpsu6odmrwr.jpg</a> <a href="http://s66.photobucket.com/user/the___Punisher/media/E1156945-5747-4996-9A28-8DCEEDF2980E_zpshjwzo0dx.jpg.html" target="_blank">http://i66.photobucket.com/albums/h251/the___Punisher/E1156945-5747-4996-9A28-8DCEEDF2980E_zpshjwzo0dx.jpg</a> Am I missing something? How does the receiver end plate sit flush with that screw head protruding into that space? No end plate needed. Unless you want a sling attachment. |
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Originally Posted By The_Punisher:
No end plate needed. Unless you want a sling attachment. Pistol? Otherwise, what stock are you using that wouldn't need an endplate or get in the way of that? |
Don't let your mind be so open that your brains fall out or so closed that your ears rub together. ~Brother Wright
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Originally Posted By JoshAston:
Pistol? Otherwise, what stock are you using that wouldn't need an endplate or get in the way of that? Originally Posted By JoshAston:
Originally Posted By The_Punisher:
No end plate needed. Unless you want a sling attachment. Pistol? Otherwise, what stock are you using that wouldn't need an endplate or get in the way of that? Sorry, yes a pistol. My mind wasn't thinking past the application I was using it for. I must still be in a fog from yesterday's gallbladder removal.
Can anesthesia cause dain bramage? |
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Originally Posted By JoshAston: Pistol? Otherwise, what stock are you using that wouldn't need an endplate or get in the way of that? Originally Posted By JoshAston: Originally Posted By The_Punisher: No end plate needed. Unless you want a sling attachment. Pistol? Otherwise, what stock are you using that wouldn't need an endplate or get in the way of that? This ^^ |
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Originally Posted By wjbaker1:
Great idea...but do you know how hard it was to find a 4-40 set screw? Nobody in 3 towns had them, I tried every hardware and auto parts store including ACE, Home Depot, Lowe's, and NAPA. I finally found some stainless 4-40 set screws, but I had to buy a pack of 100. So, since I have extras, if anyone needs some, contact me. My email is through Yahoo. Bill. When I used to fly R/C planes I used 4-40 set screws. The hobby shop carried them in packs of 6. This was 10 years ago and I'm guessing they are still sold there. |
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Texas, not just a state but a state of mind.
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Texas, not just a state but a state of mind.
Nemo me impune lacessit
Honesty is the first chapter in the book of wisdom
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Originally Posted By wildx007: I just drove all over town looking for 4-40 screws with no luck. I found the tap at every place.  I couldn't find them locally either, I ended up ordering some from a RC hobby website. |
A generation which ignores history has no past — and no future.
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McMaster-Carr has all kinds of stuff. Set screws Taps. I have no association with them, other than being a very happy customer for many years. They have stuff you need, and they ship fast. |
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For those of us that don't have taps lying around.
http://www.seekinsprecision.com/parts-and-accessories/ar-lowers/seekins-precision-sp223-gen2-billet-lower-logo-includes-ambi-bolt-stop-assy.html |
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Originally Posted By Cobalty2004:
For those of us that don't have taps lying around. http://www.seekinsprecision.com/parts-and-accessories/ar-lowers/seekins-precision-sp223-gen2-billet-lower-logo-includes-ambi-bolt-stop-assy.html Or . . . . http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=4-40+tap |
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Originally Posted By Cobalty2004:
For those of us that don't have taps lying around. http://www.seekinsprecision.com/parts-and-accessories/ar-lowers/seekins-precision-sp223-gen2-billet-lower-logo-includes-ambi-bolt-stop-assy.html No need to buy that hideous thing. It's a $5 part at your local hardware store.
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Originally Posted By chenault:
No need to buy that hideous thing. It's a $5 part at your local hardware store. Originally Posted By chenault:
Originally Posted By Cobalty2004:
For those of us that don't have taps lying around. http://www.seekinsprecision.com/parts-and-accessories/ar-lowers/seekins-precision-sp223-gen2-billet-lower-logo-includes-ambi-bolt-stop-assy.html No need to buy that hideous thing. It's a $5 part at your local hardware store. But then you need a tap handle and the lube... ugh lifes hard. Seriously though that seekins lower is great, no bolt catch roll pin and it has tension set screws for the safety and upper to lower. They even offer a version with the standard mag well. |
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Originally Posted By Cobalty2004:
But then you need a tap handle and the lube... ugh lifes hard. Seriously though that seekins lower is great, no bolt catch roll pin and it has tension set screws for the safety and upper to lower. They even offer a version with the standard mag well. Originally Posted By Cobalty2004:
Originally Posted By chenault:
Originally Posted By Cobalty2004:
For those of us that don't have taps lying around. http://www.seekinsprecision.com/parts-and-accessories/ar-lowers/seekins-precision-sp223-gen2-billet-lower-logo-includes-ambi-bolt-stop-assy.html No need to buy that hideous thing. It's a $5 part at your local hardware store. But then you need a tap handle and the lube... ugh lifes hard. Seriously though that seekins lower is great, no bolt catch roll pin and it has tension set screws for the safety and upper to lower. They even offer a version with the standard mag well. Aero Precision lowers are also tapped for the detent screw. They're inexpensive, high quality, and they don't look like a steampunk AR that was melted in a microwave. |
"...I think I speak for all of us when I say that Obama and everyone who voted for him can fornicate themselves with an iron stick. "
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Originally Posted By freeport56:
What about the Electrolysis between the two metals? Will the steel dissolve the aluminum ? You do realize that the barrel, barrel nut, takedown pin, pivot pin, hammer pin, trigger pin, hammer, trigger, hammer spring, trigger spring, endplate, castle nut, pistol grip screw, takedown pin detent, pivot pin detent, takedown pin detent spring, pivot pin detent spring, safety, safety detent, safety detent spring, ejection port door, ejection port door rod, ejection port door spring, forward assist, forward assist spring, forward assist roll pin, magazine release, magazine release spring, bolt catch, bolt catch plunger, and bolt catch spring are all steel parts against aluminum right? |
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Originally Posted By Cobalty2004:
For those of us that don't have taps lying around. http://www.seekinsprecision.com/parts-and-accessories/ar-lowers/seekins-precision-sp223-gen2-billet-lower-logo-includes-ambi-bolt-stop-assy.html Aero receivers come tapped and aren't stupid overpriced. |
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Originally Posted By wjbaker1:
Great idea...but do you know how hard it was to find a 4-40 set screw? Nobody in 3 towns had them, I tried every hardware and auto parts store including ACE, Home Depot, Lowe's, and NAPA. I finally found some stainless 4-40 set screws, but I had to buy a pack of 100. So, since I have extras, if anyone needs some, contact me. My email is through Yahoo. Bill. I wish Amazon hadn't bought Small Parts Inc. a few years ago, that would have been the no-brainer place to find any sort of fastener like this. Now their catalog - which is online, and simply part of Amazon - is flooded with crap parts for lousy prices. 
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Simple fix for the rear takedown detent spring blues.... (Page 5 of 6)
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