This upper consists of 16” 300 AAC Blackout Stainless Heavy Barrel, Stainless Flash Hider, A3 flat top upper, Single top rail gas block, and Free Float Quad Rail.
- 16" 416 stainless steel hbar contour barrel. Hardened to 26-32 rc and stress relieved. Chambered in 300 blackout. 1-7 rh twist. Button rifled. .750 under gas block. Straight fluted. 5/8-24 threads with our stainless steel muzzle brake and crush washer. M4 feedramps
- A3 flat top upper receiver - made from certified 7075-t6 aluminum forgings. Black hardcoat anodized and teflon coated to gov. specs. Proper white "t-marks" on rails. Forward assist and dust cover installed.
- Single top rail gas block made from aircraft quality aluminum and black hardcoat anodized. Carbine length.