--- title: "SureFire SOCOM556-RC4 Black 5.56mm Suppressor" description: "Black 5.56mm suppressor with Fast-Attach mounting, Inconel construction, Cerakote finish, 6.3\" length, 1.5\" diameter, and 17 oz weight." canonical_url: "https://www.kygunco.com/product/surefire-socom556-rc4-5.56mm-series-fast-attach-sound-suppressor" meta: author: KYGUNCO "og:description": "Black 5.56mm suppressor with Fast-Attach mounting, Inconel construction, Cerakote finish, 6.3\" length, 1.5\" diameter, and 17 oz weight." "og:image": "https://cdn.kygunco.com/assets/products/298874/thumbnail.jpg?v=1765226887" "og:image:height": "500" "og:image:width": "500" "og:title": "SureFire SOCOM556-RC4 Black 5.56mm Suppressor" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Class III](https://www.kygunco.com/category/shooting/guns/class-iii) / [Suppressors](https://www.kygunco.com/category/shooting/guns/class-iii/suppressors) / SRF-SOCOM556-RC4-BK ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/298874/main.jpg?v=1765226887) For illustration purposes only, this image may not be an exact representation of the product. # SUREFIRE SOCOM556-RC4 5.56mm Series Fast-Attach Sound Suppressor - Black The SureFire SOCOM556-RC4 is a black 5.56mm (.223 caliber) sound suppressor with a Fast-Attach mounting system. Made from high-temperature Inconel superalloy, it measures 6.3" long, has a 1.5" diameter, weighs 17 oz, and adds 3.8" to the firearm with the applicable SureFire adapter. Its low-back-pressure design and revised muzzle support flash and gas reduction. $1,472 ** 5 interest-free payments of **$294.40** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** NFA / Class 3 NFA transfer requirements vary by product and location. Additional documentation, approvals, or a qualified dealer may be required. Check local and state regulations to ensure eligibility and compliance before purchasing. ** Ships To FFL Dealer Fulfilled by a partner warehouse. ** Partner Fulfilled ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 298874 Style SRF-SOCOM556-RC4-BK UPC 084871334303 Condition New Manufacturer [SureFire](https://www.kygunco.com/brand/surefire) Model SOCOM556-RC4 Caliber 5.56 NATO Action Silencer Advancing at the Speed of Sound. The SureFire SOCOM556-RC4 stands as the premier 5.56mm combat suppressor, combining extreme durability, reduced back pressure, and unmatched flash reduction—all in a compact SOCOM Fast-Attach® platform. Crafted entirely from U.S. mill-certified Inconel superalloy, the SOCOM556-RC4 resists the punishing heat and erosion of sustained 5.56 fire, even from short-barreled rifles. Its fusion of precision-machined and 3D-printed aerospace-grade components, joined by advanced CNC laser welding, delivers the legendary structural endurance that defines SureFire suppressors worldwide. The redesigned muzzle enhances flow, slashes flash, and provides superior signature reduction—giving operators a decisive edge in stealth-critical missions. From the first shot to the last, even under extreme heat, SureFire’s flash suppression remains industry-leading. Reinforced at the front end, the RC4 is built to withstand impacts and keep performing long after others fail. SureFire’s breakthrough low-back-pressure architecture cuts back pressure by up to 60% compared to traditional suppressors. The result: less gas in the shooter’s face, cleaner firearm operation, reduced wear on components, and improved recoil control. The SOCOM556-RC4 attaches via the proven Fast-Attach system, enabling rapid, tool-free mounting and removal while remaining backward compatible with millions of SOCOM Fast-Attach flash hiders already in service. Proudly engineered in the U.S.A., the SOCOM556-RC4 is without equal—built for the modern battlefield and trusted to deliver the durability and performance professionals demand. - The world's finest 5.56mm fighting suppressor - New muzzle design significantly reduces frontal flash detection and provides improved durability against physical impacts - Extreme durability with Inconel construction, delivering the combat-proven reliability that established SureFire's suppressor legacy - 60% lower back pressure means less toxic gas, improved reliability, superior recoil control, and a cleaner firearm - Fourth-generation flow dynamics delivers unmatched flash suppression from the first round to the last FEATURES - Next-generation SureFire gas flow dynamics further reduce flash signature - Revised muzzle design provides greater durability when subjected to extreme abuse - 60% less back pressure results in less toxic gas in the operator's face, improved reliability, superior recoil control, and a cleaner firearm - Optimized for 10.3-inch and longer barrels, the SOCOM556-RC4 is 6.3 inches long and adds only 3.8 inches to the firearm for minimal impact on handling characteristics - 100% Inconel construction delivers the combat-proven reliability and durability that SPECIFICATIONS - Caliber: 5.56mm (.223 Caliber) - Construction: High-Temp Inconel Superalloy - Coating: Cerakote Finish - Body Colors: Black - Diameter: 1.5 in - Length: 6.3 in - Length Added to Weapon: 3.8 in \*Actual length may vary, depending on which SureFire adapter is used - Weight: 17 oz ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). ## Watch The Product In Action ## Frequently Bought Together 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/surefire-socom556-rc4-5.56mm-series-fast-attach-sound-suppressor#webpage","@type":"WebPage","description":"Black 5.56mm suppressor with Fast-Attach mounting, Inconel construction, Cerakote finish, 6.3\" length, 1.5\" diameter, and 17 oz weight.","name":"SureFire SOCOM556-RC4 Black 5.56mm 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