AR9 Pistol Upper Assembly – 4″ Nitride Barrel, 1:10 Twist Rate with 5″ M-Lok Handguard

Enjoy one of the most compact 9mm AR uppers on the market.
This 4″-barreled AR-9 upper provides one of the most compact and lightweight options on the market, ensuring high maneuverability without sacrificing power or accuracy.
The included hybrid 9mm AR bolt carrier group and magazine well work together to accept any 9mm GLOCK® magazine. Pair with any AR-15 lower receiver with a 9mm conversion block, or any retail or 80% AR-9 lower to complete your build.
What’s Included 
This is not a firearm. It includes an assembled upper assembly, bolt carreir group, and a charging handle. 
AR-9 Pistol Upper Assembly Specifcations
Barreled uppers are assembled in-house and ready to fire before shipment.
Barrel Specs

Barrel Length: 4″
Barrel Steel: 4150 CMV, heat-treated
Barrel Finish: Nitride
Muzzle Thread: 1/2×36
Chamber: 9mm Parabellum
Twist Rate: 1:10
Muzzle Device: Fluted Flash Can

Handguard Specs

Attachment System: 5″ M-LOK
Finish: Type III Hardcoat Anodized (Mil-Spec)
Top Rail: M1913 Picatinny
Material: Billet 6061-T6 Aluminum
Attachment: Free-Float, Barrel Nut

Receiver Specs

Receiver Material: 6061 Billet T6 Aluminum
Receiver Type: Slick Side / No Dust Cover / No Forward Assist

Bolt Carrier Group Specs

Bolt Steel: Nitride, Heat-Treated 8620 steel
Bolt Carrier Profile: 9mm / G-9 Hybrid
Charging Handle Included: Yes

Lower receiver not included. 
 

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