AR-15 Pistol Kit - 5.56mm (7" Barrel, 1:7 Twist & 9" Lightweight MLOK Handguard) with 80% Lower



Time to add a shorty to your AR collection?  Good.  We have some serious hardware for you!  This little guy's got the caliber of a full-sized AR-15 but in a pistol configuration.  Now you can pack the punch of an AR-15 in a smaller size.

This package gets you a prebuilt upper assembly complete with a 7-inch barrel made of chrome moly vanadium and a 9-inch lightweight free float MLOK handguard.  It also comes with a set of Magpul MBUS sights, a lower parts kit, and your choice of forged, billet, or no 80% lower receiver.  Finally, you get ST Tactical's SBA3 adjustable pistol brace.  Build and enjoy.

AR-15 Pistol Build Kit Specs:

Barrel Length: 7″

Barrel Steel: Chrome Moly Vanadium

Barrel Finish: Nitride

Muzzle Thread: 1/2×28

Chamber: 5.56mm NATO

Twist Rate: 1:7

Muzzle Device: Fluted Flash Can

Receiver Material: 7075 T6 Forged Aluminum

Receiver Type: M4

Handguard Type: 9” Lightweight M-Lok

Bolt Carrier Group Included: Yes

Bolt Steel: Carpenter 158

Charging Handle Included: Yes

AR-15 Pistol Build Kit Features:

  • Complete build kit w/ optional lower
  • Includes pre-built 5.56mm AR upper
  • High-quality CMV barrel for accuracy
  • 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, 7”, chambered in 5.56mm NATO. Made of 4150 CMV steel. Heat-treated. Features 1:7 twist rate. Includes 9” M-Lok handguard, and fluted flash can.

Upper: Made of 7075 T6 forged aluminum. Hard-coat anodized (Type III).

Bolt: Accepts both .223 and 5.56mm NATO. Heat-treated. Nitride finish. Carpenter 158 steel.  Full auto profile.

80% Lower: Complete with optional AR-15 80% lower. Mil-spec fittings. Type III Hardcoat anodized finish.

Lower Parts Kit: Mil-spec AR-15 lower parts kit. Enhanced, polished trigger (EPT). Six-position buffer tube. SB Tactical Pistol Brace. Magpul MOE grip. Carbine buffer spring and pistol buffer.

Charging Handle: Standard AR-15 charging handle.

Please note: If completing your AR-15 build using the optional 80% lower, please select an AR-15-compatible 80% jig from the available options on our website.

No FFL required  Made in the USA  Lifetime Warranty

Shipping Restrictions 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.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, New Jersey, New York, Pennsylvania, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.