FAMILY: Phantom Series MODEL: Phantom 5.56 TYPE: NFA - Silencer FINISH: Matte Black WEIGHT: 20 oz. THREAD PATTERN: 1/2x28 DIAMETER: 1.5" ATTACH METHOD: Direct Thread CALIBER/GAUGE: 223 Rem | 5.56 NATO OVERALL LENGTH: 6.875" BAFFLE TYPE: Sound Technologies CONSTRUCTION: 300 Series SS & Inconel 718 DB REDUCTION: 35 dB CAN DISASSEMBLE: No ADDL INFO: All Stainless Construction ADDL INFO: Rated .17HMR thru 5.56mm