Dead Air DA128 Xeno Xero 45 Cal 5/8"-24 4140 HT Alloy SteelThe Xeno Xero threaded taper mount is a muzzle device that gives a lightweight minimalist mounting option offering non negotiable repeatability and a solid return to zero. All this while still delivering the durability expected from a Dead Air mount. The shorter size decreases its entrance into the blast chamber, maximizing sound performance and minimizing overall weight. The Xeno Xero is compatible with all Dead Air Xeno Adapters. The 1 2 28 Xeno