197019 Quantity 1 piece(s) per pack Color Black Material Aluminium alloy Suitable Gun Type 20mm rail gun Magnification 1X Objective Diameter 32mm Specification Built-in 5-mode red / green intensity adjustment; Powered by 1 x CR2032 button cell (included); Waterproof and shockproof; Multi-reticle (4 pattern) or variable dot (4 different sizes) are installed; Packing List 1 x Gun sight 1 x Hex wrench 1 x Cleaning cloth 1 x CR2032 button cell 1 x English manual