KAK Complete Upper- AR10, 308 Win, 18" Barrel, Rifle Gas System, 15" MLOK

KAK Industry Complete AR10 Upper Receiver 308, 18" Barrel, 15" MLOKHigh Rail Height* Barrel Length- 18"* Barrel Material- 41V50 Button Rifled Barrel* Chamber 308 Winchester* Twist Rate 1:10* Muzzle Device- A2 birdcage 5/8-24* Gas System- Rifle length* Gas Block- Low profile .750 Nitride Finish* Charging Handle- Enhanced Large Billet Latch* Upper Receiver- Billet * Handguard- MLOK 15", High Quality 6061 T6 Material with Proprietary Clamping Tri-lug System and Heavy-Duty Barrel Nut BCGAuto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, BlackNitride Finish by H&MBolt- Dual Ejector, machined from a single piece aircraft/bearing quality 9310 steel, heat treated properly, precision ground, Shot Peened and MPI'dFiring pin is machined from 8740, precision ground, and chrome platedOne Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistanceNitride Cam PinS7 tool steel ejectors and extractor retaining pin4130 Gas Key, nitride, precision staked using our hydraulic staking machineKAK Carrier Key Screws- Grade 8, Properly Heat TreatedAll KAK complete upper receivers are test fired for feed and function using commercially loaded ammunition