Gunsmith experience is required. We recommend hiring a professional gunsmith. Please note. Viene con una mira de punto rojo ADE Zantitium RD3-015, una placa picatinny y una placa de montaje óptico diseñada para adaptarse a Sig Sauer P320 M17, M18... Red dot has multi brightness level with one adjustment button. ADE RD3-015 PRO Zantitium Shake Awake Red Dot 4 Ruger Beretta glock SW Buy BETTEHUMZ Gille Inset Tims fo BMW F20 F21 F30 F32 F34 F36 3 4 Seies M Spot Style M-Pefomance Gill Stips Accessoies (ed): Gille Insets - FEE DELIVEY possible on eligible puchases This optic plate requires removal of the rear sight, dissemble the pistol slide to reach the screw hole underneath. See other ADE listings Ade Zantitium Red Dot Sight Picatinny/Weaver Mounting Plate For ADE RD3-015 Zantitium Red Dot Sig Sauer P320 Sights Unprofessional installation such as improper torque will result in screw loose, not holding zero, damage to the firearm/optic and personal injury. No plastic body, no plastic lens. New advanced battery technology gives up to 3000 hours on bright setting and up to 40k hours on Low setting with a 2032 Battery(Included). Shock proof,Fog proof and Waterproof for 30 minutes under 4ft water. Top load system, no need to remove the sight to change the battery. Comes with a ADE RD3-009 red dot, a Picatinny plate and a pistol optic plate that is only compatible with Sig Sauer P320-X5 Pistol(Does NOT compatible with X5-Legion) Installing optic plate to handgun is NOT recommended for users that are not familiar with pistol assembly. Every time you turn on the dot it stays the same brightness level last time it was turned off It gives up to twice bigger window than other micro red dot. Full metal construction with glass lens.