Radical Firearms 5.56 NATO Upper Receiver Assembly 16" 1:7 Twist M-LOK – AR-15 Compatible

This Radical Firearms complete upper receiver assembly is chambered in 5.56 NATO and built for AR-15 pattern lowers. The 16-inch barrel features a 1:7 twist rate optimized for heavier projectiles in the 62-77 grain range, making it well-suited for duty, tactical training, or hunting with modern ammunition loads. The M-LOK handguard provides low-profile mounting options for accessories without added bulk.

The upper is machined from forged 7075-T6 aluminum with a black hardcoat anodized finish. It comes fully assembled with barrel, gas system, handguard, and bolt carrier group installed. This is a drop-in unit that requires only attachment to a mil-spec AR-15 lower receiver. Verify headspace and function before live fire use, as with any upper/lower pairing.

• Caliber: 5.56 NATO
• Type: Complete upper receiver assembly
• Compatible Lower: AR-15 / mil-spec lower receivers
• Barrel Length: 16 inches
• Twist Rate: 1:7
• Handguard: M-LOK compatible
• Material: Forged 7075-T6 aluminum
• Finish: Black hardcoat anodized
• Includes: Assembled upper with BCG and charging handle
• Installation: Attaches to mil-spec AR-15 lower receiver