The EXO 5.56 is the first suppressor of its kind to utilize the proprietary Ambient Intake System. Unlike flow-through suppressors, this all-new category of suppressor technology features intake channels that harness ambient air to drastically reduce post-shooting temperatures, decimate the report of your rifle at the muzzle by ~35dB's, and materially mitigate unwanted blowback. HUB Compatible. Firearm not included.