Description
A ready-to-build AR9, made for maximum accuracy.
The AR9 is a versatile platform, capable of sending 9mm rounds at distances far beyond the typical pistol — if you configure it correctly. So, that’s what we’ve done with this kit: A 4150 CMV-forged, 10.5″ barrel ensures maximum muzzle velocity and accuracy with all 9mm loads, while a tuned 9mm buffer and side-charging provide reliable operation with improved ergonomics and recoil control.
Paired with a free-float, M-LOK handguard featuring top-mounted Picatinny rails for optics and iron sights, and a custom billet M4 flattop upper, this 9mm AR-15 kit includes everything you need — minus the lower receiver — to build an accurate, compact shooter.
Barrel
- Chamber: 9mm
- Contour: M4/Government
- Length: 10.5″
- Twist Rate: 1:10
- Gas System: Blowback
- Muzzle Threads: 1/2 x 36
- Material: 4150 CMV
- Finish: Parkerized
- Process: Button Rifled
- Lining: None
- Feed Ramp: 9mm
- Muzzle: “Twisted” Flash Hider
Handguard
- Attachment System: M-LOK
- Handguard Length: 9.5″
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: M4 Flattop Right-Side Charger
- Material: Billet 6061-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Bolt Carrier Group
- Profile: M16/Full-Auto
- Steel: AISI E9310
- Exterior: Black Nitride
- Interior: Black Nitride
- Gas Key: N/A
- Charging Handle: Included, Right-Side Charging
Lower Receiver Parts
- Buffer System: 9mm
- Pistol Brace: SBA3 5-Position
- Parts Kit: 9mm, Single-Stage Trigger
Lower receiver not included. Requires AR9 lower, or AR-15 lower 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
- 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 Kit - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard right for me?
- Our AR9 Pistol Kit - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard is ideal if you’re shopping for: AR9 Pistol Kit - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard, AR Build Kits. 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 Kit - 10.5" Parkerized M4 Barrel, 1:10 Twist Rate with 9.5" MLOK Handguard suitable for me?
- Our AR9 Pistol Kit - 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.
