AR9 Left-Side Charging Bufferless Upper Assembly – 16″ Parkerized M4 Barrel, 1:10 Twist Rate with 15″ MLOK Handguard

9mm. Bufferless. Side-Charging. AR.

What more could you ask for? The engineering update the AR should’ve received decades ago is finally here, and we’re excited: This AR9 upper assembly features an entirely internal, self-contained bolt carrier group and recoil system that ditches the external buffer — no more buffer tube required — and it ditches the standard charging handle in favor of a slick side-charging unit.

Bufferless Upper Includes Sealed End Plate

Included with this upper is a unique, sealed end plate that threads into any standard buffer tube housing’s threads — including our dedicated AR9 80% lowers, and all other retail-bought 9mm AR lowers.

The end plate features a Picatinny rail for attaching your choice of folding stock adapter.

AR-9 Upper Assembly Specs

Barrel

• Chamber: 9mm
• Contour: M4
• Length: 16”
• Twist Rate: 1:10
• Gas System: Blow-back
• Muzzle Threads: 1/2×36
• Feed Ramps: Single
• Material: 4150 CMV
• Finish: Parkerization
• Process: Button Rifled
• Lining: QPQ Nitride
• Extension: M4
• Muzzle: Spiral Flash Hider

Handguard

• Attachment System: 15″ M-Lok
• Finish: Type III Hardcoat Anodized (Mil-Spec)
• Top Rail: Split Rail / 1913 / Picatinny Rail
• Material: 6061-T6 Billet Aluminum
• Attachment: Barrel Nut

Upper Receiver

• Profile: A3 Flattop
• Material: Forged 7075-T6 Aluminum
• Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

• Profile: 9mm / Blow-back
• Steel: 9310 Tool, HPT/MPI-tested
• Exterior: Black Nitride
• Interior: Parkerized
• Gas Key: 9mm Blow-back
• Charging Handle: Included Left-Side Charging