KAK Complete AR15 Upper Receiver - 300 Blackout - 13.9" Barrel - 13" MLOK - 4 Prong P&W

URG

• Barrel Length- 13.9” Pinned and Welded (16" OAL)
• Barrel Material- 41V50 Button Rifled Barrel
• Chamber 300 BLK
• Twist Rate 1:7
• Muzzle Device- KAK 4 Prong Flash Hider 5/8-24 (Pinned and Welded)
• Extension- M4
• Gas System- Carbine length
• Gas Block- Low profile .750 Nitride Finish
• Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
• Handguard- 13”, High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut

BCG

• M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, BlackNitride Finish by H&M
• Bolt is machined from a single piece aircraft/bearing quality 9310 steel, heat treated properly, precision ground, Shot Peened and MPI’d
• Firing pin is machined to the mil-spec print from 8740, precision ground, and chrome plated
• One Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistance
• Nitride Cam Pin
• S7 tool steel ejector and extractor retaining pin
• 4130 Gas Key, nitride, precision staked using our hydraulic staking machine
• KAK Carrier Key Screws- T25 drive, Grade 8, Properly Heat Treated and staked