SureFire Socom556-RC4

SUREFIRE SOCOM556-RC4 SUPPRESSOR - 5.56 FAST-ATTACH SILENCER, FOURTH-GENERATION SOCOM SERIES

The SureFire SOCOM556-RC4 is the fourth-generation SOCOM fighting suppressor, built entirely from U.S. mill-certified Inconel superalloy, finished in Cerakote, and engineered with revised internal flow geometry that delivers 60% lower back pressure and roughly four times the flash reduction of the previous RC3. At 6.3 inches overall and adding just 3.8 inches to the host, the RC4 is optimized for 5.56 platforms starting at 10.3 inches. It mounts tool-free via SureFire's patented Fast-Attach system and is backward compatible with every SureFire SOCOM Fast-Attach muzzle device already in the field. If you are looking for a combat-grade 5.56 suppressor with a documented military service record and a fourth-generation upgrade to match, the SOCOM556-RC4 is that can.

CAPITOL ARMORY'S OPINION

The SOCOM line has a long track record of being used on M4s downrange. The RC4 is not a cosmetic refresh, it's an overhauled model. SureFire redesigned the internal flow geometry from scratch, and the result is a suppressor that cuts back pressure by 60% compared to earlier SOCOM cans while adding meaningfully better flash suppression. Less back pressure means less gas in the shooter's face, better cycling reliability, and a cleaner-running firearm over extended use. Better flash suppression means the muzzle signature stays low even when the suppressor is hot and round counts are high. The all-Inconel construction is ideal for a silencer that will see sustained fire on short-barreled 5.56 rifles. Inconel handles the heat and erosion demands that titanium starts to struggle with under hard use, and the reinforced muzzle end adds impact resistance that most suppressors skip entirely. At this price point, you are paying for Inconel construction, fourth-generation performance, and a legacy that is hard to argue with.

FEATURES

• 60% reduction in back pressure vs. previous SOCOM generation
• Fourth-generation flash suppression with ~4x improvement over RC3
• 100% U.S. mill-certified Inconel superalloy construction
• Cerakote finish
• Caliber: 5.56mm / .223
• Diameter: 1.5 in (3.8 cm)
• Overall length: 6.3 in (16 cm)
• Length added to weapon: 3.8 in (9.7 cm)
• Weight: 17 oz (482 g)
• Optimized for 10.3-inch and longer barrels
• Full-auto rated
• Tool-free Fast-Attach mounting
• Backward compatible with all SureFire SOCOM Fast-Attach muzzle devices

WHAT'S INCLUDED

• SureFire SOCOM556-RC4 Suppressor

COMPATIBLE MUZZLE DEVICES

• SureFire SF3P Flash Hider
• SureFire Muzzle Brake
• SureFire Warcomp
• Backward compatible with all SureFire SOCOM Fast-Attach muzzle devices

AVAILABLE MODELS

• SOCOM556-RC4-BK (Black)
• SOCOM556-RC4-DE (Dark Earth)

SOUND PERFORMANCE

• 139 dB measured at the shooter's ear, M855 ammunition, 10.3-inch barrel