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AR 15 Pistol Kit – .300 AAC Blackout (7.5″ Nitride Barrel & 7″ M-Lok Handguard) w/ 80% Lower

$747.99 $625.00 (You Save $122.99)

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300 Blackout: If you wanna build a close-range hand cannon that’ll put a hole in just about anything, you’ve found the right kit. This AR-15 Build Kit sports a heavy-barreled 7.5″ upper forged from 4150V gun steel – the same stuff the U.S. Army loves. Inside, a full-auto M16 BCG goes to work with a pistol gas system, reliably cycling any light or heavy loads. Just swap the magazine and keep burning brass.

This kit also comes with a forged M4 upper with plenty of rail space for your favorite optics and irons. You also get a lower parts kit with an upgraded Magpul MOE grip and polished trigger, a complete buffer tube assembly with a pistol brace by SB Tactical, and your choice of one of our forged or billet 80% lower receivers! Pair with a jig and get your build kit finished in a single afternoon. Then, just hit the range!

300 Blackout Pistol Kit Specs:

Barrel Length: 7.5″
Gas System: Pistol Length
Barrel Profile: Heavy
Barrel Steel: 4150V 
Barrel Finish: Phosphate
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 300 Blackout
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-Profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: 7″ Lightweight M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-Auto
Charging Handle Included: Yes
Overall Length: 17″

300 Blackout Pistol Kit Features:

  • Includes everything you need to complete your build
  • Ships to your front door with no FFL or paperwork
  • Heavy barrel and EPT Parts Kit provide sub-MOA accuracy
  • Pre-built upper removes the guesswork of assembly
  • Made in the U.S.A., backed by a Lifetime Warranty

300 Blackout Pistol Kit Details:

Barrel: Phosphate-coated, 7.5”, chambered in .300 AAC Blackout. Features 1:8 twist rate, M4 barrel extension, and pistol-length gas system. Includes 7″ lightweight M-Lok free-float rail, .750″ diameter low profile gas block, and an A2 flash hider.

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: Includes an optional forged or billet 80% lower. Each lower features a mil-spec, hard-coat anodized finish and mil-spec fittings.

Lower Parts Kit: Includes complete, mil-spec AR-15 parts kit. Features Enhanced Polished Trigger (EPT).

Charging handle: Standard 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 15 Pistol Kit – .300 AAC Blackout (7.5″ Nitride Barrel & 7″ M-Lok Handguard) w/ 80% Lower

$747.99 $625.00 (You Save $122.99)

$669.99 $575.00 (You Save $94.99 )
Save For Later
Save For Later

Free Shipping on all orders $325+!


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