The Omega 36M provides multiple configurations for length weight and mounting options. It's two-piece modular design allows for the removal of the front section which provides the shooter with a shorter and lighter suppressor that still offers impressive sound performance. The Omega 36M offers great versatility for pistols subguns and rifles without sacrificing performance.The Omega 36M is rated down to 10" barrels for .223 REM/5.56 NATO 16" barrels for .308 WIN/7.62 NATO and 20" barrels for .300 WM and .338 LM.Specifications: CALIBER COMPATIBILITY: 5.7MM x 28 to 9MM / 5.56 NATO to .338LPM & up to 350 Legend ACCESSORIES: Charlie ASR Pistons & 3-Lug WEIGHT: 9.8 - 12.5 oz LENGTH: 4.90? - 6.85" DIAMETER: 1.57" MATERIALS: Cobalt 6 Inconel Titanium & 17-4 SS MUZZLE AVERAGE: 5.56 NATO: 130.6 dB 300 BLK: 124.1 dB 308 WIN: 136.9 dB 300 WM: 139.5 dB 338 LM: 141.4 dB 9MM: 123.3 dB FINISH: Black