Core-556 Suppressor
$425 MSRP
The KGM CORE-556 was designed to complement the most prolific firearm platform in the United States. Intended for AR-15 and M4-style rifles, carbines, and pistols chambered in 5.56 NATO or .223 Remington, the CORE-556 delivers on the performance standards expected from all KGM Suppressors, in a streamlined and accessible package.
Building on the proven performance of the R556A1 and R556A2, the CORE-556 features a simplified, fully welded stainless-steel construction for durability and long service life. A 1/2×28 direct-thread rear mount provides a robust and repeatable attachment method. Improved internal geometry, derived from the Rogue-Alpha family, allows the compact 4.75-inch suppressor to stand out among leading “K-can” designs.
An ideal solution for shooters who own multiple AR-style rifles, the CORE-556 is a dedicated suppressor for training, duty, and professional use. Built to endure heavy firing schedules and maintain hearing-safe performance on standard-length 5.56/.223 platforms. At an MSRP of only $425, the CORE-556 delivers affordable, professional-grade performance, and earns its place in every armory. And, of course, it comes in heat-resistant C-Series Cerakote.
Core-556 Specifications
| Caliber | .223 Rem/5.56 NATO |
| Construction | Hardened Stainless-Steel; fully welded |
| Diameter | 1.75″ (44.5 mm) |
| Length (w/o mount) | 4.75” (121 mm) – (P&W on 12.5″ or longer barrel ***??? |
| Weight (w/o mount) | 13 oz (369 g) |
| Color(s) Available | Black and FDE C-Series Cerakote |
Core-556 Features
- 1/2×28 threads – Direct Thread Only – DO NOT USE CRUSH WASHERS
- The CORE-556 may be pinned and welded to a 12.5-inch barrel for an overall length of 16-inches.
- Installed securely to the muzzle threads, no crush washers or shims are needed.
- Designed specifically for 5.56 NATO and .223 Rem platforms, the CORE-556 delivers uncompromising performance in an efficient, streamlined package.
- Fully welded & stainless-steel materials combined with an exact laser-welded construction create an extended service life, perfect for a dedicated training, duty, and professional use suppressor.
- 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.
- Bore is precision cut with wire-EDM process to ensure perfect alignment and concentricity.
- In-house gas-nitride finish to further harden the suppressor.
- Finished in durable C-Series Cerakote.
- Reduced sound, pressure, and tonal changes in firing decrease shooter signature and increase effectiveness.







