If you're looking for an AR pistol build kit that's still short but still maintains more than enough barrel length to reach great ballistic performance, you need this kit.
We pieced together this build kit based on an upper assembly that features a 10.5" nitride-coated barrel with a 9" M-Lok free floating handguard.
To sweeten the deal, we threw in a lower parts kit that has an upgraded trigger and a Magpul MOE pistol grip instead of a standard one. To complete the rear end, you get the SB Tactical Pistol Brace.
Finally, we finished the build kit off with our 9mm 80% lower receiver. All you need to supply are the backup sights or optic of your choice and mags. Please note, our 9mm lower is cut to accept Glock mags. Other magazines like the Colt SMG/box style or grease gun mags will not work.
AR-9 Pistol Build Kit Specs:
Barrel Length: 10.5"
Barrel Steel: 4150 CMV, heat-treated
Barrel Finish: Nitride
Muzzle Thread: 1/2x36
Chamber: 9mm Parabellum
Twist Rate: 1:10
Muzzle Device: A2 flash hider
Receiver Material: Forged 7075 T6
Receiver Type: Flat-top w/ Picatinny
Handguard Type: Lightweight 9” M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: Shot-peened, MPI-tested, 8620 steel
Bolt Carrier Profile: 9mm Hybrid
Charging Handle Included: Yes
AR-9 Pistol Build Kit Features:
- Complete build kit w/ optional lower
- Includes pre-built 9mm AR upper
- Hybrid 9mm AR bolt carrier group
- High-quality CMV barrel for accuracy
- Compatible with Glock magazines
- Features enhanced, polished trigger
- Not considered a firearm, no FFL required
- Proudly built in the U.S.A.
- Backed by Lifetime Warranty
Barrel: Nitride-coated, 10.5”, chambered in 9mm Parabellum. Made of 4150 CMV steel. Heat-treated. Features 1:10 twist rate. Includes custom 9” lightweight M-Lok handguard, and A2 flash hider.
Upper: Mil-spec, made of forged 7075 T6 aluminum. Hard-coat anodized (Type III).
Bolt: Custom 9mm AR hybrid bolt carrier group. Compatible with 9mm Glock magazines. Heat-treated. Nitride finish. 8620 steel.
80% Lower: Complete with optional AR-9 80% lower. Mil-spec fittings. Type III Hardcoat anodized finish.
Lower Parts Kit: Mil-spec 9mm AR lower parts kit. Enhanced, polished trigger (EPT). Six-position buffer tube. SB Tactical Pistol Brace. Carbine buffer spring. 9mm pistol buffer.
Charging Handle: Standard AR-15 charging handle.
Please note: If completing your AR-9 build using the optional 80% lower, please select an AR-15-compatible 80% jig from our available options.
AR-15Lowerreceivers.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally. 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 (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. We try our best to keep our shipping page current, but laws change daily.