R556A1 - 5.56 / 6mm hard use suppressor
$925 MSRP
The KGM R556A1 is a compact yet robust suppressor designed to meet and exceed SOCOM specifications for full-auto firing, accuracy, repeatability, sound suppression, and minimal impact on a rifle’s operating system. The R556A1 has successfully surpassed over 20 SOCOM SURG firing cycles and continued to perform. The R556A1 works on 5.56 rifles of every barrel length, and is ideal on 14.5″ and longer barrels. Beginning summer 2024, the R556A1 has the bore EDM cut open to accommodate 6mm cartridges such as the 6mm ARC.
As a minimized backpressure design, the R556A1 achieves this performance by efficiently managing gas flow through the suppressor to ensure minimal disruption to the rifle’s performance. In addition, redirecting the gas flow away from the bullet’s flight path enhances precision. Simultaneously, the engineered gas flow passes through the suppressor to reduce flash, recoil, and sound.
The R556A1 is built to last, featuring an Inconel core, with stainless steel components, and laser welded together, ensuring an extended service life, even after enduring years of hard use. The R556A1 was built to handle M855A1 from barrels as short as 6.5”.
The R556A1 includes one, 1/2×28 QD Flash Hider.
Specifications
| Caliber | 5.56mm and 6mm cartridges |
| Construction | Inconel & Hardened Stainless Steel |
| Diameter | 1.75″ (44.5 mm) |
| Length (w/o mount) | 4.85” (123 mm) |
| Weight (w/o mount) | 15.9 oz (450 g) |
| Color(s) Available | Black and FDE Cerakote |
Features
- Rugged Inconel and stainless steel materials combined with an exact laser-welded construction create an extended service life, even during aggressive full-auto firing schedules.
- Intelligent baffle and gas-flow design eliminates over-gassing and reduces toxic gases for the shooter and rifle.
- Internal re-direction of gasses and a shrouded, integrated gas flow end-cap with flash-hider, achieve superior flash reduction.
- Gas flow design and precision manufacturing serve to enhance rifle precision, minimizing point-of-impact changes.
- Reduced sound, pressure, and tonal changes in firing decrease shooter signature and increase effectiveness.
- Quick and secure attachment with quick-detach mount featuring a tapered shoulder for rock-steady attachment with secondary retention.
