Which bolt for the AR?

[DMK]

I just attended an AR Armoring course that is endorsed by several of the larger purveyors of AR platforms. And, the instructor had noted nothing that detracted from using plated carriers. But, it was related that there was a bad batch of chrome plated carriers sold a while back.

There is that whole chrome plating "hydrogen embrittlement" issue. I'm not a melalurgist, so I'm not sure I completely understand the problem there, but I do agree that it seemed to be due to specific manufacturing oversights and not a problem with chrome plating bolts or carriers in general.

But I guess that's sort of moot when you ask yourself, why do I even need one? (like M4 feedramps )

 

[Mannlicher]

Depending on how much money you want to put into this build, you can buy 'no name' aftrer market, something from Colt, Bushmaster, Rock River, ARmalite, etc, or you can go the custom route, and spend the farm.