Ultra compact, without sacrificing accuracy or power.
Enjoy optimal accuracy, style points, and high recoil control with this 4" AR-9 Pistol Upper. Featuring a 4150 CMV forged barrel with a fluted flash can and a lightweight, 5” M-Lok handguard, this 9mm AR upper promises MOA accuracy with tight shot groups, and better recoil control than any 9mm handgun.
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.
DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 80% Lowers, a/k/a 80-lower.com nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.
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:
- 4"
- Barrel Finish:
- Nitride
- Twist Rate:
- 1/10
