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Posted: 12/7/2011 8:15:34 AM EDT
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I'm wondering which of these two BCG gas keys is correctly staked?
http://i18.photobucket.com/albums/b134/UncleAlvah1/001-3.jpg |
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In my opinion the one on the left is correct, the one on the right is questionable. I say this because staking is designed to prevent the gas key screws from working loose, and the staking method on the left is the one used on pretty much all high quality BCGs I have ever seen. I believe the staking method on the right is inferior to the one on the left, if I got a bolt carrier like that, I would send it back. |
| The one on the left is GTG. The one on the right might work for a little while bit it will work its way loose and cause issues. Get a center punuch or even a hardened nail and pop another on the other side of the screw. I recommend taking out the screws adding a drop of locktite and then putting them back in as they will come out really easy at this point. |
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My BCG originally looked like the one on the right, factory DPMS. It came loose. Brought it in to a smith and he told me he uses a MOACKS. It now looks like the one on the left.
BTW, the MOACK is badass. After seeing it in a thread somewhere here I see why my key will most likely be torn off before it ever comes loose. Interesting read for sure. Just be prepared for FIRE if you ask about staking being "proper" or not!!! |
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Quoted:
I believe the staking method on the right is inferior to the one on the left, if I got a bolt carrier like that, I would send it back. I wouldn't. Young MFG sends theirs out un-staked. By the time you re-packaged the thing to send out - you could be done with staking it. Take a chisel/flathead and smack the fucker and be done with it. 
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Colt bolt carrier at left, the rest are LMT, all are properly factory staked Quoted:
I'm wondering which of these two BCG gas keys is correctly staked? http://i18.photobucket.com/albums/b134/UncleAlvah1/001-3.jpg Compare your pic with mine, the one on your pic's left carrier looks properly staked. The carrier at your right is not acceptable, there should be at least three or four staking per fastener according with the Army mil-spec. If you have to use the bad staked one at least torque the fasteners properly, then side stake it using a modified homemade pin punch or broken screwdriver tip. The proper way is by using a staking tool that slowly push the key material towards the fasteners, the impact of hitting the tool with a hammer could be too much and could damage the fasteners, but for emergency the impact method is acceptable. Proper Staking of Carrier Key Screws - content thread link Ref. ARMY TM 9-1005-319-23&P see section 3-7 Bolt Carrier Assebly, part C Inspection pdf page 131 (of 325) link below. http://www.ar15.com/content/manuals/TM9-1005-319-23.pdf |
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