Brownells and KAK Industry have partnered to build the best performing complete upper at an unbeatable price. This premium complete upper features a chrome-lined barrel, chrome-lined phosphate K-SPEC Enhanced BCG, Brownells-exclusive PentaComp muzzle device, and a rock-steady free-float KAK Industry MLOK handguard. 100% American made for years of dependable service. The K-SPEC Down Vent BCG represents unrivaled reliability, featuring Slotted Angled Carrier Rails, Dual Ejectors, and downward gas vents that redirect gas underneath the carrier instead of out at the shooter’s face. For suppressed shooting with a traditional baffle can, the K-SPEC down vent BCG is a game-changer. Mfg: Kak Industry Llc.
Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4 .040 Hooded Aperture Rear Sight Black Original price was: $359.99.$279.99Current price is: $279.99. 
COBALT KINETICS CK-Pro Upper Receiver Group 14.5in 5.56 NATO Black Cerakote CKPROURG556145BLK Original price was: $1,429.67.$1,277.98Current price is: $1,277.98. 
K-Spec 5.56x45mm Nato Complete Upper Receiver – K-Spec 5.56 Nato 16”” Bbl 1-7 Twist Complete Upper Black
Original price was: $599.99.$525.99Current price is: $525.99. 
