Designed specifically for the .223 and 5.56 mm caliber cartridge the Eclipse Flash Hider uses a slightly twisted triple prong design to reduce flash to near zero in even total darkness conditions. The device is threaded 1/2 x 28 tpi and will clear any projectile up to .223 caliber and 5.56 mm. Do not use with larger calibers. The Eclipse Flash Hider is marked "MA" and "223" and can have a HK retainer spring installed (not included) to retain on the spines on typical HK style barrels.
Material: 8620 steel with Rockwell 50C heat treat
Weight: 3.6 ounces
Length: 2.25 inches
Designed and Manufactured 100% in the USA