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.

Caliber.223 Rem/5.56 NATO 
ConstructionHardened Stainless-Steel; fully welded
Diameter1.75″ (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) AvailableBlack and FDE C-Series Cerakote
  • 1/2×28 threadsDirect Thread OnlyDO 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.