Want to sling some serious firepower downrange? Wanna do it with the smallest hand cannon you can get your hands on? That's why we put together this badass, compact AR-15 Pistol Kit. Chambered in 300 Blackout and sporting a 7.5" cold-forged heavy barrel (made from mil-spec 4150 CMV), this pistol kit includes everything you need to start shooting light and heavy .300 BLK with ease and accuracy.
Up top, a forged M4 upper receiver pairs with a pistol gas system and full-auto M16 BCG to keep things running smoothly. Out back, an SB Tactical brace and full buffer system handle all that recoil. Pair the included polished trigger kit with an optional billet or forged 80% lower and you'll have all the parts to complete the build!
The size of this build kit makes it ideal for home defense purposes or for any situation where (legal) close range shooting is mandatory or even desired. Get to building!
300 Blackout Pistol Kit Specs:
Upper Receiver Type: Forged Standard
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Coating: Hardcoat Anodized
Muzzle Device: Fluted Flash Can
Barrel Caliber: 300 Blackout
Barrel Profile: Heavy
Barrel Material: 4150 Chromoly Vanadium
Barrel Length: 7.5"
Barrel Thread Pitch: 5/8 x 24
Barrel Twist Ratio: 1:7
Barrel Finish: Nitride
Barrel Lining: Nitride
Gas Block Size: .750
Gas Block Type: Low Profile
Gas System: Pistol
Handguard Length: 9"
Handguard Type: M-LOK
Handguard Color: Black
Rail Profile: Lightweight
BCG Caliber: 5.56
BCG Profile: Full Auto
BCG Finish: Phosphate
BCG Testing: MP
BCG Logo: None
BCG Bolt Type: Carpenter 158
Charging Handle: 7075 T6 Aluminum
300 Blackout Pistol Kit Features:
- Includes all parts needed to complete your build
- Requires no FFL, not considered a firearm
- Pre-built upper ships ready to fire
- Ships straight to your front door
- Proudly built in the USA
- Backed by Lifetime Warranty
300 Blackout Pistol Kit Details:
Barrel: Nitride-coated, 7.5”, chambered in .300 AAC Blackout. Made of 4150 Chromoly Vanadium. Features 1:7 twist rate, M4 barrel extension, and pistol-length gas system. Includes 9" lightweight M-Lok free-float rail, .750" diameter low profile gas block, and fluted flash can.
Upper: Mil-spec, made of forged 7075 T6 aluminum. Hard-coat anodized (Type III). Features M4 feed ramps.
Bolt: Mil-spec, shot-peened, made of Carpenter 158 steel. Gas key secured with Grade 8 fasteners, staked per mil-spec. Parkerized exterior, chrome-lined interior.
80% Lower: Pick an optional forged or billet 80% lower. All lowers include mil-spec fittings and hard-coat anodizing.
Lower Parts Kit: Includes complete, mil-spec AR-15 parts kit. Features Enhanced Polished Trigger (EPT).
Charging handle: Standard 7075 Forged charging handle.
Please note: If completing your AR Pistol Kit using the optional 80% lower, please select an 80 lower 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.