ADE is releasing the 2023 PRO SERIES for ADE RD3-015(2016-present) Zantitium red dot called Zantitium PRO(D3-015PRO). The additional features that the PRO series includes are Motion Activated System, IP67 Waterproof, and Multi Reticle Technology. The ADE Zantitium Red dot sight is the biggest handgun sight on the market! It gives up to twice bigger window than other micro red dot. Please keep in mind when installed on micro-compact handgun will look bulky. The size of the red dot is about 30% longer than other red dots, the window is also bigger. Therefore, it will NOT fit on some Optics Ready handgun model that has an optic cut in front of the rear sight(will keep the rear sight to co-witness the red dot), such as Glock Mos, Springfield OSP. The longer length of this red dot does not sit in the pre-cut. It only fits the mounting plate that is made to REPLACE the rear sight and set on the top of the slide(not in the pre-cut). The ADE Zantitium PRO(D3-015PRO) has Motion Activated System. While Zantitium PRO is turned on, the red dot illumination goes to sleep after five minutes of inactivity, but when any motion or vibration is detected, it instantly switches on illumination at the previous brightness setting. User also has a option to manually turn the red dot power off to disable the Motion Activated System. The reticle can be switched between a 32 MOA circle with 2 MOA dot, a 2 MOA dot only, or a 32 MOA ring only at the push of a button. Better yet, the same LED projects both reticles, so no re-zeroing is necessary. Operates with a single CR2032 battery. Press and Hold the DOWN switch for 3 seconds to manually turn on/off the power. Press and Hold the UP switch for 3 seconds to change reticle. Quick press Up/Down switches to adjust brightness. Top load System, no need to Remove the sight to change the Battery. Comes with Red dot, tool, removeable picatinny plate with two screws, cover, lens cloth and instruction manual. Fits pistol optic plate to replace the rear sight (DOES NOT FIT OPTICS READY PISTOL WITH CUT) that is compatible with Doctor/Vortex Venom/Burris Fastfire footprint. Does NOT fit RMR, Shield RMS type footprints plate.