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AR-300 .300 AAC Blackout Pistol Upper Assembly 7

AR-300 .300 AAC Blackout Pistol Upper Assembly 7" Barrel Custom 7" Top Cut Hybrid MLOK Handguard Complete w/ BCG & Charging Handle - Sig Pink

AR15 .300 AAC Blackout Rifle Upper Assembly 16

AR15 .300 AAC Blackout Rifle Upper Assembly 16" Barrel Custom 15" Top Cut Hybrid MLOK Handguard Complete w/ BCG & Charging Handle - Black

AR-300 .300 AAC Blackout Pistol Upper Assembly 7" Barrel Custom 7" Top Cut Hybrid MLOK Handguard Complete w/ BCG & Charging Handle - Rose Gold

For best results, ABC Rifle Company recommends 110-125 Grain SuperSonic Ammunition unless shooting with a Suppressor.

Special Price $299.99 was $599.99
Availability: In stock
SKU
UA300-BR7-TCABC7-RG

Description

Engineered for reliability and balance, this upper features a 7075-T6 forged receiver and a sleek 7” top-cut M-LOK handguard for modern accessory mounting. The 7.5” 4140 chromoly barrel with a 1:8 twist, chambered in .300 AAC Blackout, delivers consistent performance in a compact profile. Outfitted with a steel A2 birdcage flash hider, .750 gas block, steel barrel nut, and a 6.75” pistol gas system, it’s built for smooth, controlled operation. Finished with a nitride full-auto BCG, forged milspec charging handle, forward assist, and steel ejection port cover, this upper is a no-nonsense solution for short-barrel Blackout builds.

Upper Specifications

  • 7075-T6 Milspec Forged Aluminum Upper Receiver
  • 6061-T6 Aluminum ABC Rifle Co 7” Top Cut MLOK Handguard
  • Steel Barrel Nut
  • 4140 Chromoly 7.5” 1:8 Twist .300 AAC Blackout Barrel
  • .750 Low Profile Steel Gas Block
  • Stainless Steel 6.75” Pistol Gas Tube
  • 5/8x24 Steel A2 Birdcage Flash Hider
  • 8620 MPI Tested Full-Auto Rated Nitride Milspec Bolt Carrier Group w/ 9310 Bolt
  • Milspec Stamped Steel Ejection Port Cover
  • Milspec Forward Assist
  • Forged 6061-T6 Aluminum Milspec Charging Handle

General Specifications

  • Weight:
  • Overall Length:
  • Caliber: .300 Blackout

Billing and Shipping address MUST match the address that is on file with your Financial Institution or the order will be canceled and a $25 cancellation fee deducted from your refund. 

Digital representations of Cerakote colors may vary due to lighting, screen settings, and image processing. For the most accurate color reference, consult official Cerakote color samples.

NOTE:  ALL CUSTOM COATINGS ARE INSPECTED PRIOR TO SHIPMENT.  ABC RIFLE COMPANY WILL NOT BE HELD LIABLE FOR ANY SCRATCHES, BLEMISHES, DINGS , ETC....  

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