Designed for versatility across multiple platforms with a balance for weight and performance.Features :Includes Charlie ASR Mount and Charlie .30 cal front capCompatible with Charlie ASR Mount, Charlie Direct Thread Mounts, Charlie Piston Mount, Charlie Front Caps, ASR Muzzle Devices, Pistons and Tri-LugShort Configuration: weighs 12.2 oz. & Measures 5.78 inches (without mount)Long Configuration: weighs 14.9 oz. & Measures 7.72 inches (without mount)Rated for centerfire pistol and rifle calibers including 45 Auto, 10MM, 450 Bushmaster, 458 SOCOM, 45-70, 338 LM and up to 460 Weatherby MagnumConstructed of Titanium, Inconel and 17-4 Heat Treated Stainless SteelFull-Auto Rated