When it comes to home defense (or sometimes just impressing people at your local range), shorter is better because of the added maneuverability. When it comes to acquiring your own shorty for home defense and turning heads at the range, it's even better to say you built it yourself. We're giving you that opportunity.
This build kit will get you an AR pistol chambered in 9mm. You get a prebuilt upper assembly with a 4-inch barrel and a 5-MLOK handguard. You'll just need to add back-up sights or optics of your choice. You also get SB Tactical's SBA3 adjustable pistol brace. Finally, you get a 9mm 80% lower and all the internals to install into your build. All in all, this kit is an excellent choice for making your home and loved ones a little safer.
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.