Acheron HexaLug Muzzle Brake 5.56mm - 1/2-28 UNEF

Effective muzzle brake with integrated HexaLug interface.

Compatible with all silencers with HexaLug interface. The backwards compatibility of HexaLug also allows the installation of a silencer with a larger caliber. For example, an ACS E1 in 7.62 mm caliber can be mounted on a muzzle brake in 5.56 mm caliber.

If a weapon is used primarily or exclusively with a silencer, a muzzle brake should be preferred over a flash hider. The three chambers of the muzzle brake divert hot powder gases to the side, resulting in a longer silencer lifespan. If the weapon is used without a silencer, the increased noise generated by the side gas outlet must be taken into account. Especially for people standing next to the shooter, the noise level is significantly higher than when using a flash hider.


1/2″ – 28 UNEF
Standard thread on almost all American weapons in 5.56 mm cal

M12 x 1L (FN P90)
Special version for FN P90

M13 x 1L (Steyr AUG)
Special version for Steyr AUG

M14 x 1
Suitable for assault rifles based on the Czech vz.58, sometimes also found on hunting weapons. Older Haenel CR223 are also equipped with M14 x 1.

M14 x 1L
Suitable for rarer Romanian AK variants in caliber 5.45x39 mm, the Chinese Type 84S and probably others

M15 x 1
Suitable for Haenel CR223 and many other weapons. Not suitable for HK MR223, HK 33, etc.

M15 x 1 HK
Special version for HK MR223 that covers the cylindrical section between the muzzle thread and the shoulder. Not suitable for Haenel weapons.