Upper
- Barrel Length-11”
- Barrel Material- 416R Stainless, bead blasted matte grey
- Chamber 6.5 Grendel
- Twist Rate 1:8
- Muzzle Device Milspec A2 birdcage 5/8-24
- Extension- M4
- Gas System- Carbine Length
- Gas Block- Low profile .750 Phosphate Finish
- Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
- Handguard- 9.8”, High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut
- Charging Handle- Milspec with Enhanced Large Billet Latch
BCG
- M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, Chrome Lined Phosphate
- 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
- S7 tool steel ejector and extractor retaining pin
- 4130 Gas Key, Chrome Lined Phosphate, precision staked using our hydraulic staking machine
- KAK Carrier Key Screws- T25 drive, Grade 8, Properly Heat Treated and staked
All KAK complete upper receivers are test fired for feed and function using commercially loaded ammunition
