Description
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
Frequently Asked Questions
- How fast is shipping?
- Orders ship within 3 business days to your selected Michigan FFL dealer with full tracking info.
- Where can I pick up my firearm?
- Pickups are at licensed FFL dealers in Michigan. Use terms like “gun shop near me in Michigan” or “FFL dealer in Michigan” to locate one.
- Do I need a permit or license?
- For handguns, residents must obtain a License to Purchase (unless they already hold a CPL). Long guns from FFL dealers require no additional permits—per Michigan law.
- Can I carry this concealed or openly?
- Michigan is a “shall-issue” state for concealed carry at age 21+. Open carry is allowed without a permit, except in vehicles or specified locations :contentReference[oaicite:20]{index=20}.
- Is this AR9 Pistol Upper Assembly - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard right for me?
- Our AR9 Pistol Upper Assembly - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard is ideal if you’re shopping for: AR9 Pistol Upper Assembly - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard, ar parts, AR Parts. Great options for both beginners and experienced owners.
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Frequently Asked Questions
- How fast will my order ship?
- We ship all orders within 1-3 business days to your licensed Michigan FFL dealer. Tracking info will be emailed.
- What is your return policy?
- Non-firearm items can be returned within 14 days unused. Firearms sales are final after FFL transfer. See full return policy.
- Is the AR9 Pistol Upper Assembly - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard suitable for me?
- Our AR9 Pistol Upper Assembly - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard is popular among Michigan customers for personal defense and sport shooting.
