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Bravo Company AR-15 bolt

Firearms

AR-15 Tech: Bolts

Those looking to go “premium” when building or finishing an AR-15 often look at an upgraded bolt carrier group. The primary functioning part in that group is the bolt assembly. The carrier body, as long as it is true USGI-standard specification, will give reliable and correct service. Sure, plated premium carriers are nice, mostly because they clean up much easier. Likewise, a higher-dollar carrier won’t make or break your gun, but a sub-standard bolt might.