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: 1/2x36
- 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
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80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Caliber:
- 9mm
- Platform:
- AR9
