Brownells has these on sale!! This is for a retro no forward assist build. I can't believe I found this!!
M16 5.56 BOLT CARRIER GROUP CHROME MP | Brownells
Classic Retro Chrome M16 Bolt Carrier Groups match the finish of the bolt found on the earliest AR-15 & M16 rifles introduced. The Brownells M16 Chrome 5.56 Complete Bolt Carrier Group included a bolt machined from 9310 steel, which is magnetic pa...
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