Product Description SPECIFICATIONS MATERIAL: ALUMINUM/STEEL LENGTH: 155MM COMPATIBILITY: 14MM COUNTER CLOCKWISE THREADING PACKAGE INCLUDES: 1X MOCK SUPPRESSOR FEATURES SMOOTH LIGHTWEIGHT ANODIZED ALUMINUM CONSTRUCTION QUICK ATTACH MOCK SUPPRESSOR ENSURES PERFECT ALIGNMENT EVERY TIME ADDITIONALLY FUNCTIONS AS A BARREL EXTENSION DESIGNED WITH DIPS TO PROVIDE A NON-SLIP GRIP WHEN ATTACHING WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov/product Customer Reviews