AR-15 6.5 Grendel 20" stainless steel competition upper assembly, This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly. Available in 416R Stainless Steel threaded barrels or 4150 Steel Black Nitride Finish, with 1 and 8" twist and rifle length slim keymod free float handguards. This twist rate is optimal for the shooter using today's popular heavier bullets. The free float handguard reduces the chance of accuracy-reducing pressure.
Barrel - 20" 416 stainless steel hbar barrel, fluted. Hardened to 26-32 rc and stress relieved. Chambered in 6.5 Grendel Type 2 (true 6.5 Grendel chambering). 1-8 rh twist. .750 under gas block. Threaded 5/8x24. M4 feedramps. Rifle gas system. Barrel is finished off by a triport muzzle brake. Currently, only melonite finish barrels in black are available.
A3 flat top upper receiver - made from certified 7075-t6 aluminum forgings. Black hardcoat anodized to Gov. Specs. Forward assist and dust cover installed. M4 feedramps.
Gas system - .750 low profile gas block, made from aircraft quality steel. Rifle length gas tube.
Handguards - Rifle-length keymod free float rail. Made from aircraft quality aluminum and black hard coat anodized.
Does not come with BCG or Charging Handle. Can be purchased separately.