CALIBER 7.62mm (30 Caliber) – WEIGHT 12.5 oz – DIAMETER 1.75 in – OVERALL LENGTH 7 in – ATTACHMENT / MOUNT Quickie Fast-Attach – MATERIAL(S) Stainless Steel – FINISH Melonite – QUICKIE MOUNT FAST-ATTACH. CLASSIC. – UPDATED BAFFLE DESIGN. PREMIUM SOUND PERFORMANCE. – OPTIMAL FOR SUPER-SONIC AND SUB-SONIC. – COMPACT LIGHTWEIGHT; DESIGNED FOR NINJAS. – SOUND TO SIZE PERFORMANCE: WITCHCRAFT. – WEIGHS THE SAME AS AN AVERAGE ADULT DESERT HEDGEHOG.