Tacfire BU-300-8 Complete Upper .300 Blackout 8"
Complete AR-15 upper receiver in .300 Blackout with 8" barrel, 1-8 twist rate, free-float handguard, pistol-length gas system, and bolt carrier group included.
Fits: AR-15
Tacfire BU-300-8 Complete Upper Receiver
This is a complete, ready-to-mount upper receiver assembly for the AR-15 platform, chambered in .300 AAC Blackout. It arrives fully assembled with bolt carrier group, requiring only attachment to your lower receiver to create a functional rifle.
Key Features
- Caliber: .300 AAC Blackout
- Barrel Length: 8 inches
- Barrel Twist Rate: 1-8 (suitable for a wide range of bullet weights)
- Gas System: Pistol-length for compact operation
- Handguard: 8-inch free-float design for improved accuracy
- Muzzle Device: A2-style flash hider with 5/8x24 threads (compatible with standard suppressors)
- Finish: Black
- Includes: Bolt carrier group
Why This Upper Works
The .300 Blackout cartridge excels in short-barreled rifles, delivering effective performance in both supersonic and subsonic loads. The 8-inch barrel keeps the overall package compact while the 1-8 twist rate stabilizes bullets ranging from 110 to 220 grains. The free-float handguard isolates the barrel from the receiver, promoting consistent accuracy shot to shot.
This upper is an excellent choice for home defense, hunting, or recreational shooting where a compact, powerful platform is desired.
