Introducing the Radical Firearms 8.5-inch HBAR (Heavy Barrel) 300BLK (Blackout) MIL-STD Upper with 7-inch-RPR (Radical Firearms Primary Rail) – a high-performance upper receiver designed to provide exceptional reliability, accuracy, and versatility for your AR-15 platform. Crafted with precision engineering and durable materials, this upper receiver offers superior performance in a compact and maneuverable package.
The heart of this upper receiver is its 8.5-inch HBAR barrel chambered in 300 Blackout, a cartridge known for its versatility and effectiveness in short-barreled configurations. The heavy profile barrel ensures optimal heat dissipation and minimal barrel whip, resulting in improved accuracy and consistency shot after shot.
Featuring a 7-inch-RPR (Radical Firearms Primary Rail) handguard, this upper receiver offers ample space for mounting optics, accessories, and other tactical enhancements. The free-floating design of the handguard provides enhanced accuracy by minimizing barrel contact and allowing for consistent barrel harmonics during firing.
The Radical Firearms 8.5-inch HBAR 300BLK MIL-STD Upper is built to MIL-STD specifications for compatibility and durability, ensuring seamless integration with your existing AR-15 lower receiver and components. The upper receiver comes fully assembled and ready to install, making it easy to upgrade your rifle with minimal effort.
Whether you’re a tactical operator, a competitive shooter, or a recreational enthusiast, the Radical Firearms 8.5-inch HBAR 300BLK MIL-STD Upper offers the reliability, accuracy, and performance you need to excel in any shooting scenario. Elevate your AR-15 build with Radical Firearms and experience the difference that quality craftsmanship makes.
Specifications:
- Barrel Length: 8.5″
- Gas System: Pistol Length
- Barrel Profile: HBAR Profile
- Barrel Material: 4140 Chrome Moly Vanadium
- Barrel Finish: Melonite
- Muzzle Thread: 5/8×24
- Chamber: 300BLK
- Twist Rate: 1:8
- Barrel Extension: M4 Feed Ramp
- Gas Block Type: .750 Low-profile Gas Block
- Muzzle Device: A2 Flash Hider
- Upper Receiver Material: Forged 7075 T6
- Upper Receiver Style: M4 Mil-Std
- Upper Receiver Finish: Type III Anodizing
- Forward Assist: Yes
- Dust Cover: Yes
- Handguard Type: Free Float
- Handguard Style: M-Lok Thin Rail
- Handguard Length: 7″
- Charging Handle: Mil-Std
- Bolt Carrier Group Included: Yes
- BCG Finish: Nitride
