SureFire SOCOM556-RC4 Features The SOCOM556-RC4 incorporates SureFire's updated gas flow dynamics to significantly cut flash signature and reduce back pressure by sixty percent resulting in less toxic gas to the shooter improved weapon reliability and a cleaner operating system. Its strengthened muzzle design enhances durability under extreme firing conditions supporting dependable performance during high tempo operations. With optimized internal geometry and a compact 1.5 inch diameter the suppressor promotes controlled recoil and consistent point of impact. SureFire's patented tool less Fast Attach system allows rapid mounting and removal while maintaining secure lockup and repeatable accuracy. The RC4 is backward compatible with SOCOM Fast Attach muzzle devices and is optimized for SF3P FH556RC and WARCOMP open tined flash hiders already in widespread use. Proudly designed and manufactured in the United States the SOCOM556-RC4 delivers the rugged reliability and refined engineering expected from SureFire's SOCOM series. SureFire SOCOM556-RC4 Specifications Manufacturer: SureFire Model: SOCOM556-RC4 Family: SOCOM Series Sound Silencer Type: NFA Silencer Item Group: Centerfire Rifle Silencers Caliber/Gauge: 223 Rem | 5.56 NATO Finish: Ionbond Cerakote Matte Black Finish Type: Black Overall Length: 6.3 Attachment Method: Quick Detachable Diameter: 1.5 Construction: 100 Percent Inconel and High Temp Alloys Weight: 17 oz Back Pressure Reduction: 60 Percent Barrel Compatibility: Optimized for 10.3 Inches and Longer Mounting System: Fast Attach Tool Less Design Muzzle Device Compatibility: SF3P FH556RC WARCOMP Country of Manufacture: USA