Description GrovTec G-Nite .308 Nitride Pronged Flash Hider – 5/8×24 Designed to cool down release gases suppress the flash signature • One Piece Steel Construction• Includes Crush Washer Additional information Weight 4.96 oz Dimensions 5.5 × 3 × 1.75 in Muzzle Device Type Flash Hider Threads 5/8×24 Cartridge Compatibility .30 (7.62/.308) Finish Nitride / Melonite MPN GTHM356 UPC 850001279185