The Mark 12 Mod 0 SPR upper is 18.5" barreled upper with capable MOA accuracy. The flat top receiver has a Gas Buster® charging handle with military big latch, Pri rifle length black finished forearm, a full spr PEQ II top rail. The upper also comes with a bolt carrier group, PRi's flip up front gas block sight and rear sight and a OPS brake and collar. All uppers are assembled cleaned and tested before shipping. Please allow 5~10 days for assembly and testing before ship date.
This Mark 12 Mod 0, ready to shoot 6.8mm upper is equipped with a 18.5" Douglas 416 stainless steel barrel 1-10 twist, M4 feed ramps with a fitted bolt and commercial carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, and a OPS inc brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm in Black finish. This upper comes with a black barrel. The upper comes with a 10 round magazine. Please allow 5~10 days for assembly before ship date.
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