- Designed to fit Canik Elite TP9 SC, Canik METE SFX, Canik METE SFT, Sig P365XL/P365X, Ruger Max-9, Glock 43X MOS/48 MOS (not compatible with regular Glock 43x/48 that are not MOS), Springfield Hellcat OSP, S&W Shield 2.0 Optics Ready, S&W MP9 EZ, S&W M&P shield plus performance center, Walther PPS M2 Optics Ready, Girsan MC1911SC Ultimate or any pistol/mounting plate/slide with RMS/RMSC screw pattern/footprint. - Hard-coated aircraft aluminum in FDE body! And multi-coated glass. It's not a plastic body with a polymer lens. - ADE SPIKE red dot sight is always powered on with automatic brightness. Operates with a single CR2032 3v battery. With our advanced technology, the sight only draws approximately 700-microampere power to give a very long battery life. The brightness will turn high and low according to the environment's brightness. - ADE SPIKE created an iron sight curve at the end of the body and also added two white dots on the curve. For the rear part of the red dot to become a backup iron sight. With the ultra-short design, the red dot provides a distance/gap on some full-size optics-ready pistols, to give enough distance to be a Co-Witness backup sight, in addition to the LED dot and pistol-equipped iron sight. - For non-optics ready pistols that need to use an optic plate/adapter to replace the pistol manufacturer-equipped rear sight, ADE Spike's rear white dot will act as a pistol factory original rear sight for Co-Witness. - Comes with screws for several Optics Ready handguns. Does not come with any mounting plate such as a picatinny mount or plate made for a specific handgun. - Comes with 3 pairs of screws for Sig P365XL/X, Springfield Hellcat OSP, and Canik TP9 Elite SC ONLY. The provided screws might NOT work with EVERY compatible pistol listed. ADE makes the red dot accept the industrial standard footprint.