ADE RD3-015 PRO Shake Awake Red Dot + Optic Mounting Plate for SAR 9 USA SAR9 Gen 1 and Gen 2

If you're not seeing a perfect round dot but instead observe a splashed dot, half-moon shape, multi-dot, or starburst, there's a high probability (99%) that you might have astigmatism without being aware of it. What you perceive is likely a small reflection of the LED light on the lens. A quick and simple way to confirm this is by using your cellphone to take a photo of the dot. If the photo shows a circular dot, you've essentially diagnosed yourself with astigmatism.

• This combo listing includes an ADE RD3-015 PRO red dot sight, a mounting plate specifically designed for SAR9 Gen 1 and Gen 2 pistols, and a standard picatinny mount. It is compatible with SAR USA SAR9, SAR9 C, SAR9 METE, SAR9T, and SAR9 X models from Gen 1 and Gen 2 only. Please note, it will not fit other SAR 9mm models, the newer SAR9 Gen 3 or any Optic Ready model that already has a optic 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 ADE Zantitium PRO has Multi Reticle 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 CR1632 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.
• The size of the red dot is about 30% longer than other red dots, the window is also bigger. Therefore, it will NOT fit some Optics Ready handgun model that has a optic cut in front of the rear sight(will keep the rear sight to co-witness the red dot), such as 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).
• 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.