Our Blast Director is the factory muzzle device on the EP Series Pistols. This muzzle device will help direct the muzzle blast away from the shooter and downrange. This muzzle device provides an enhanced look and an easy installation/removal with the included Lock Washer for the 1/2"-28 9mm, or the included crush washer and o-ring for the 5/8"-24 45acp version. Measures 2.75 inches in length.