Spike’s Tactical 16″ Mid-Length GMP Dissapator style .223/5.56×45 caliber Complete Upper Receiver assembly for AR15/M16 type Rifles. This is a COMPLETE Upper receiver assembly, everything except a rear sight, and includes Spike’s Tactical Tungsten filled ST-T2 heavy recoil buffer and Magpul MOE heat shield lined Rifle length handguard. This AIM Exclusive upper receiver configuration features a 16″ lightweight profile barrel, pinned mid-length gas system and “F” marked A2 Sight front sight base set at the Rifle length position. More info below. Front sight base will have a Stainless steel gas tube plug installed to prevent the handguard cap from rotating.
– Spike’s Tactical M4 flat top upper receiver, Machined from a 7075 T6 Mil-Spec Forging with Mil-Spec Type III Hard coat Anodized finish, T-markings, Spike’s logo and M4 feed ramps.
– Barrel is certified MIL-B-11595E CMV, M4 barrel extension, Chrome chamber and bore, 5.56mm Nato chamber, 1:7 Twist, Magnetic particle testing on every barrel, Phosphate finish.
– Light-weight Contour barrel with pinned and melonited low profile mid-length gas system.
– Barrel is Phosphate finished under the .625″ F marked A2 front sight base with stainless steel plug set at the rifle length handguard position.
– The M16 carriers are Chrome lined with a Mil-Spec phosphate finish.
– Forged Mil-Spec carrier key, Chrome lined, attached with Grade 8 hardware and Properly staked.
– HP/MP Tested Bolt, Each extractor is fitted with a Mil-Spec black insert and Mil-Spec Viton o-ring.
– Magpul MOE heat shield lined black handguards.
– A2 Flash Hider.
– Includes ST-T2 Buffer