Compact, low-profile 3-prong design engineered for the Plan B mounting system. Precision-machined prongs and internal flash-cutter threads disrupt and redirect muzzle blast for maximum flash reduction-no tuning-fork ping, no carbon lock. Swap suppressors in seconds on any Plan B mount, keep your barrel sleek, and protect your night vision.Weight: 2.2oz (223/556), 1.8oz (30 cal)Overall Length: 1.75"Material: 4140 Hardened Steel, NitrideThread Pitch: 1/2x28TPI (223/556), 5/8x24TPI (30 cal)Caliber: 223/5.56, 30 cal9mm compatible (exit hole = 0.369 inches)Suppressor Mount: Plan B / AtlasTorque Spec: 20-30 ft lbsPeel Washer IncludedDesigned & Manufactured in AmericaRequires a 13/16" wrench to install