The Elftmann Tactical AR15-AR10 Ambi Speed Safety ensures that you can quickly and easily move your AR from "Safe" to "Fire" and back again with one easy, simple movement. The selector requires zero movement of the shooter's dominant hand to actuate and is machined from hardened stainless steel. The safety ships with the required detent and fits all standard mil-spec AR receivers. Available finish in polished stainless steel.