Smith Vortex Flash Hider / 5/8–24 Thread. Smith Enterprises is in the process of changing the appearance of their muzzle devices. Actual Smith Enterprises muzzle devices received may vary in appearance from those pictured.
GAS BLOCK:
RRA Flip Front Sight Gas Block
HANDGUARD:
RRA LAR-8 Advanced Half Quad with Three Rail Covers
INCLUDES:
Bolt Carrier Group and Charging Handle Assembly
NOTE:
RRA .308 Caliber Upper Halves are for use only on RRA LAR-8 Lowers