Get ready for ultra short and ultra tactical. This pistol kit is chambered in 9mm and is well suited for close quarters situations such as home defense. Plus it’ll turn heads at the range. Mount a tac light on it for things that go bump in the night, and turn this little beastie into the perfect nightstand gun.
Plus, we make it easy for you. The upper assembly comes pre-built and ready to mount. Just add backup sights or an optic of your choice. The 9mm lower’s mag well is cut to accept Glock® mags (not included). Plus, this pistol kit comes with SB Tactical’s SBA3 adjustable pistol brace. See below for further details.
AR-9 Pistol Build Kit Specs:
Barrel Length: 4″
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Muzzle Thread: 1/2×36
Chamber: 9mm Parabellum
Twist Rate: 1:10
Muzzle Device: Fluted Flash Can
Receiver Material: 6061 T6 Billet Aluminum
Receiver Type: Flat-top w/ Picatinny (Slick Side)
Handguard Type: 5” Lightweight M-Lok
Bolt Carrier Group Included: Yes
Bolt Steel: 8620 Nitride (Heat-Treated)
Charging Handle Included: Yes
AR-9 Pistol Build Kit Features:
- Complete build kit w/ optional lower
- Includes pre-built 9mm AR upper
- 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, 4”, chambered in 9mm Parabellum. Made of 4150 CMV steel. Heat-treated. Features 1:10 twist rate. Includes 5” M-Lok handguard, and fluted flash can.
Upper: Made of 6061 T6 billet aluminum. Hard-coat anodized (Type III).
Bolt: Custom 9mm AR hybrid bolt carrier group. Compatible with 9mm Glock® or Colt SMG 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-9-compatible 80% jig from the available options on our website.
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.