CALIBER: 7.62mm rated up-to .300 RUM - RATINGS: Belt Fed Rated - DIAMETER: 1.5 - LENGTH: 6.4? - WEIGHT: 15.3 oz - FINISH: Cerakote - SOUND LEVELS: - 300BLK: 129.7dB - 5.56mm: 138.7db - .308: 143.8db - MATERIALS: - Baffles: Stellite core - Tube: 17-4 PH Stainless Steel - Mount: 17-4 PH Stainless Steel - FEATURES - Interchangeable Front Caps (7.62mm and 5.56mm available) - Monolithic 17-4 PH Stainless Steel Mount - Quick Detach Dual Taper Locking System - Unconditional Lifetime Warranty - BELT FED RATED: Constructed entirely of 17-4PH Stainless Steel and featuring a full Stellite baffle stack the Razor is built for anything you can throw at it. - LENGTH & WEIGHT: At 6.4? long and weighing in at 15.3oz the Razor is the shortest and lightest in it