This Mark 12 Mod 0, ready to shoot 5.56 upper is equipped with a 18" Douglas 416 stainless steel barrel 1-7 twist with a fitted Full Auto bolt 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 an AE brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm and a full length top rail with PEQ II removable rail section.  Please allow 5~10 days for assembly and testing prior to shipping.


PRI MARK 12 MOD 0 SPR

1. Caliber ..........................................................5.56/.223
2. Upper Receiver ........................Forged T6 7075 Hard coat anodized aluminum
3. Barrel.......18".........5.56 Douglas 416 stainless steel with M4 feed ramps 1-7 twist
4. Gas Block...................Flip up front sight gas block with 2 cross bolts for securing
5. Forearm....................................................Rifle length
6. Rails............................all rails plus SPR PEQ II full length top rail
7. BUIS.................Rear sight provided that works with gas block sight
8. Muzzle Brake.............................1/2 x 28 threaded AE Brake and Collar  
9. Overall Length....................................................27 Inches
10. Overall Weight...................................................5.2 pounds