Hw-Acro SightThe Acro P 1 is the only professional grade enclosed system in its size on the market. The closed emitter design ensures that debris or liquids do not interfere with the dot. Optimized for pistol and applications which require a low profile red dot system Fully enclosed housing protects all electronic components of the sight from all elements. Sealed optical channel protects the optic from rain, mud, sand, or snow Can be used as a backup optic or for