![Complete Upper Receiver - 5.56 NATO - 12.5" Carbine Gas - 9.8" MLOK Complete Upper Receiver - 5.56 NATO - 12.5" Carbine Gas - 9.8" MLOK](https://cdn11.bigcommerce.com/s-pompwzlgb8/images/stencil/300x300/products/2186/5756/Variants_-_2024-05-07T110518.562__95258.1715098106.png?c=1)
Complete Upper Receiver - 5.56 NATO - 12.5" Carbine Gas - 9.8" MLOK
$449.95 - $599.95
• Barrel Length- 12.5”
• Barrel Material- 41V50 Button Rifled Barrel, Nitride
• Chamber 5.56x45 NATO
• Twist Rate 1:7
• Muzzle Device Milspec A2 birdcage
• Extension- M4
• Gas System- Carbine length
• Gas Block- Low profile .750 Phosphate Finish
• Charging Handle- Milspec with Enhanced Large Billet Latch
• Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
• Handguard- 11.7" High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut
BCG (chrome lined phosphate comes standard, K-SPEC Upgrade available)
All KAK complete upper receivers are test fired for feed and function using commercially loaded ammunition