Maximum 9mm accuracy, with improved ergonomics.
Featuring a 10.5" barrel forged from 4150 CMV, this AR9 upper provides the highest accuracy and range for the 9mm load. Its free-float M-LOK handguard further improves accuracy and promotes cooling of the barrel during rapid fire.
Paired with blowback operation and a right-side charging handle, this 9mm upper provides vastly improved ergonomics in a compact profile.
What’s Included
This is not a firearm. It includes an assembled upper receiver, bolt carrier group, and charging handle.
9mm Pistol Upper Assembly Specs
Barreled uppers are assembled in-house before shipment.
Barrel
- Chamber: 9mm
- Contour: Straight
- Length: 10.5”
- Twist Rate: 1:10
- Gas System: Blowback
- Gas Port: 0.750”
- Muzzle Threads: 1/2 x 36
- Feed Ramps: 9mm
- Material: 4150 CMV
- Finish: Phosphate
- Process: Button Rifled
- Muzzle: "Twisted" Flash Hider
Handguard
- Attachment System: 9.5" M-LOK
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: M4 Flattop
- Material: Billet 6061-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Bolt Carrier Group
- Profile: 9mm
- Steel: Carpenter No. 158 (Mil-Spec)
- Exterior: Black Nitride
- Interior: Black Nitride
- Charging Handle: Included, Right-Side Charging
Lower receiver not included. Requires AR9 receiver, or AR-15 receiver with 9mm conversion block.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Platform:
- AR9
- Caliber:
- 9mm
- Barrel Size:
- 10.5"
- Barrel Finish:
- Parkerized
- Twist Rate:
- 1/10
