Upgrade your next AR9 build with this complete upper assembly from KAK Industry, engineered to pair perfectly with 80% AR9 lowers. Chambered in 9mm, this complete upper comes fully assembled and ready to install, featuring a 16" 41V50 button-rifled barrel and a 13" M-LOK free-float handguard, and includes a one-piece bolt carrier group (BCG) and charging handle. Perfect for AR9 pistols or carbines, this upper delivers reliable blowback performance and modularity right out of the box.
Features:
-
16" 41V50 button-rifled barrel for durability and consistent accuracy
-
Chambered in 9mm NATO with a 1:10" twist optimized for common 9mm projectiles
-
Milspec A2 birdcage muzzle device (1/2-36)
-
Blowback gas system tuned for reliable 9mm operation
-
13" M-LOK free-float handguard (6061 T6) with proprietary clamping system and heavy-duty barrel nut for secure accessory mounting
-
Forged 7075-T6 upper receiver, precision machined to M16/M4 spec
-
One-piece weighted BCG, auto profile carrier machined from 8620 steel with black nitride finish
-
Firing pin machined from 8740, chrome plated; extractor billet-machined, phosphate coated; S7 tool steel ejector and extractor retaining pin
-
4130 nitride gas key, Grade 8 carrier key screws, hydraulic staking for reliability
-
Milspec charging handle with enhanced large billet latch
-
Compatible with Colt- and Glock-style magazines (weighted BCG)
-
Test-fired for feed and function with commercial ammunition by KAK Industry
-
Note: Does not support last-round bolt hold-open (LRBHO) when used with KAK AR9 lowers
Specifications:
-
Manufacturer: KAK Industry
-
Model: 16" AR9 Complete Upper – 13" M-LOK
-
Caliber: 9mm NATO
-
Barrel Length: 16"
-
Barrel Material: 41V50 button-rifled steel
-
Twist Rate: 1:10"
-
Muzzle Device: Milspec A2 birdcage (1/2-36)
-
Gas System: Blowback (9mm)
-
Upper Receiver Material: Forged 7075-T6 Aluminum, M16/M4 spec
-
Handguard: 13" M-LOK free-float (6061 T6) with proprietary clamp and heavy-duty barrel nut
-
Charging Handle: Milspec with enhanced large billet latch
-
BCG: One-piece weighted carrier, 8620 steel, black nitride finish; firing pin 8740 (chrome plated); billet extractor (phosphate coated); S7 ejector; 4130 gas key (nitride)
-
Carrier Key Screws: Grade 8, heat treated and staked
-
Compatibility: Works with Colt- and Glock-style 9mm magazines; does not enable LRBHO with KAK AR9 lowers
-
Included: Bolt Carrier Group, Charging Handle, Forward Assist, Dust Cover
-
Test/Assembly: Assembled and function-tested by KAK Industry
Shipping Restrictions:
This item cannot be shipped to: Colorado, Connecticut, Hawaii, Illinois, Maryland, Nevada, New Jersey, New York, Philadelphia, York City, Reading (PA), Rhode Island, Washington, and Washington D.C.
