Next-generation SureFire gas flow dynamics further reduce flash signature. Revised muzzle design provides greater durability when subjected to extreme abuse. 60% less back pressure results in less toxic gas in the operator's face, improved reliability, superior recoil control, and a cleaner firearm. 100% Inconel construction delivers the combat-proven reliability and durability that established SureFire's SOCOM suppressor legacy. The SOCOM556-MINI4 is 5.5 inches long and adds only 3 inches to the firearm length. SureFire SOCOM556MINI4BK SOCOM556-MINI4 5.56mm 1.50" Black Inconel.