How do you stake a bolt carrier key on an AR?

[Mulliga]

How do you do it? (Preferably using tools you can purchase from Home Depot)

 

[Harry Tuttle]

http://www.tpub.com/content/gunsandammo/TM-9-1005-249-23P/css/TM-9-1005-249-23P_91.htm

 

[Mulliga]

Can you get a center punch from Home Depot?

 

[Harry Tuttle]

yep! HD will have a center punch

The bushmaster method uses a metal chisel to strike a line of raised metal in 2 places across the hex head

 

[Mulliga]

Thanks!

 

[Master Blaster]

Dont get a center punch its round, the wrong shape for the job.

Get a very small cold chisel like 1/4" wide and strike a line half on the allen screw and half on the base of the carrier key after you tighten the allen screw down, The purpose is to stop the screw from turning by raising a divot that cuts across both parts.

 

[Harry Tuttle]

the -23 method is 3 strikes with a center punch on the perimeter of the hex head

The method of staking will be accomplished as pictured below. Use solid center punch, and hand hammer to stake the two carrier and key screws (2) in three places.

 

[NMshooter]

I have seen both methods. As long as the screws were tightened to spec (35 to 40 inch pounds) and they are NEW screws (do not reuse old screws) either way should work.