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Posted: 10/3/2009 11:06:59 AM EDT
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So I took out my BGCs from both my Bushmasters and inspected the gas key staking on them and decided it was inadequate. I read thru Quib's guide and checked the torque on the screws and then re-staked the screws. On my first try, I used a chisel that I filed down to make it dull. However, I should have filed it down further, to increase the striking area of the chisel, because I felt it was too narrow after I staked my first BCG. I proceeded to use a punch to stake my second BCG and that turned out much better.
Anyway, on my first staking attempt using the chisel, I accidently chipped slightly at the upper edge of the lower side of the carrier key. There are no burrs that I could see. Now, I thought I recalled Quib's guide or another advising against this. It is really not that large of spot, but I am concerned about it. I have not fired the gun yet after the staking, but have I cycled the bolt maybe 5-7 times for function check. So, will that little chip on the upper edge of the lower section of the gas key be a problem at all in causing any damage inside the upper receiver ? Here's the pictures: I'm sorry for the poor image quality. 
Illustration. 
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Quoted:
It is impossible to properly stake a gas key by hand. If your manufacturer is not doing it properly at the factory, you aren't going to get it done in your garage. I disagree. http://www.m-guns.com/tools.php Check out the pocket moacks. It's steep but it's definitely nice to have. |
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Quoted:
It is impossible to properly stake a gas key by hand. If your manufacturer is not doing it properly at the factory, you aren't going to get it done in your garage. bullpucky vise, hammer, modified punch is all you need. eta and the -23 so u know wtf your doing. |
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