KGM R556A1 - 5.56mm / 6mm Inconel Suppressor - 51T Quick Detach Mount

KGM R556A1 - 5.56mm / 6mm Inconel Suppressor - 51T Quick Detach Mount

Engineered to meet and exceed rigorous SOCOM firing specifications while maintaining a compact, lightweight footprint, the KGM R556A1 Quick Detach 5.56mm/6mm Suppressor delivers elite sound mitigation, extreme thermal endurance, and minimal backpressure impact on your rifle's operating system. Purpose-built for hard-use military, law enforcement, and civilian applications, the R556A1 has successfully passed over 20 demanding SOCOM SURG (Suppressed Upper Receiver Group) firing cycles. Constructed with a high-strength Inconel baffle core laser-welded to hardened stainless steel components, this suppressor is full-auto rated and tough enough to handle high-pressure M855A1 ammunition from barrels as short as 6.5 inches.

Measuring a compact 4.85 inches in length with a 1.75-inch outer diameter, the R556A1 adds minimal length and front-end mass to your host weapon, making it ideal for 14.5-inch and longer carbines while remaining exceptionally maneuverable on short-barreled rifles (SBRs). A precision EDM-cut bore opening accommodates both 5.56 NATO/.223 Rem and 6mm cartridges, such as 6mm ARC, ensuring multi-caliber utility across modern semi-automatic rifle setups. Coated in a durable, high-temperature Black Cerakote finish, the KGM R556A1 comes complete with a 1/2x28 Quick Detach (QD) Flash Hider for rapid mounting, secure retention, and repeatable point-of-impact alignment.

Features

SOCOM SURG Full-Auto Durability:
Surpassed 20+ SOCOM SURG firing cycles, proving extreme thermal endurance and structural integrity under severe full-auto firing schedules.

Inconel & Hardened Stainless Construction:
Built with an ultra-durable Inconel baffle core laser-welded to hardened stainless steel components for maximum operational service life.

Multi-Caliber 5.56mm & 6mm Compatibility:
Precision EDM-cut bore accommodates both 5.56 NATO and 6mm cartridges (such as 6mm ARC) with zero compromise in sound reduction.

M855A1 Heavy-Duty Rating:
Designed to withstand high-pressure military M855A1 performance rounds out of barrels as short as 6.5 inches.

Compact 4.85" Footprint:
Short length and 1.75-inch diameter maintain weapon balance, maneuverability, and speed without adding unnecessary muzzle bulk.

Included 1/2x28 QD Flash Hider:
Ships standard with a 1/2x28 Quick Detach muzzle device for fast suppressor attachment, secure lockup, and consistent point-of-impact zeroing.

High-Temp Black Cerakote Finish:
Durable Black Cerakote protective coating guards the outer housing against severe friction, impact, and high-heat environmental exposure.

Reduced Backpressure Engine:
Engineered to minimize gas blowback into the receiver, preserving action cycling speed, shooter comfort, and optic sight picture.

Specifications