AR-15 300 AAC blackout 16" stainless straight fluted tactical upper assembly

AR-15 300 AAC blackout 16" stainless straight fluted tactical upper assembly

AR-15 300 AAC blackout 16" stainless steel straight fluted tactical upper assembly. 300 blackout caliber uppers use your standard .223/5.56 bolt carrier group and magazines. No special bolts or magazines to buy to get into a new caliber! Just drop an upper on your standard mil-spec AR-15 lower, and you are ready with your new caliber.

• Barrel - 16" 416 stainless steel hbar contour barrel, straight fluted. Hardened to 26-32 rc and stress releived. Chambered in 300 blackout. 1-8 rh twist. Button rifled. .750 under gas block. 5/8-24 threads completed with a stainless steel x-treme muzzle brake and crush washer. M4 feedramps.

• A3 flat top upper receiver - Made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to gov. specs. Proper T-marks on rails. Forward assist and dust cover installed. M4 feedramps.

• Gas system - Micro .750 gas block made, steel, nitride coated. Carbine length stainless steel gas tube.

• Handguards - Mid-length free floating quad rail handguard. Made from aircraft quality aluminum and black hardcoat anodized. Rails may differ in design, based on stock availability, the same excellent quality.