Radical Firearms 7.62x39mm Complete Upper – 16" 1:10 M-LOK AR-15 Platform

The Radical Firearms 7.62x39mm upper receiver assembly converts standard AR-15 lower receivers to run the affordable and widely available 7.62x39mm cartridge. This 16-inch configuration features a 1:10 twist rate optimized for standard 123-grain projectiles and includes an M-LOK compatible handguard for accessory mounting flexibility.

Constructed with a forged upper receiver and a 15-inch free-float M-LOK rail, this upper includes a complete bolt carrier group and charging handle for immediate installation. The mid-length gas system and carbine-length buffer system work with standard AR-15 carbine buffers. Note: 7.62x39mm AR conversions require compatible magazines designed for this cartridge and may require minor adjustments for reliable feeding depending on your lower receiver and magazine combination.

• Caliber: 7.62x39mm
• Type: Complete upper assembly
• Compatible Lower: Standard AR-15 pattern
• Barrel Length: 16 inches
• Twist Rate: 1:10
• Material: Forged aluminum receiver
• Finish: Black
• Handguard: 15-inch M-LOK free-float rail
• Includes: BCG and charging handle
• Installation: Drop-in to AR-15 lower; requires 7.62x39mm-specific magazines