Every time you turn on the dot it stays the same b rightness level last time it was turned off. The lowest setting is invisible by human eye that is for using with a Night Vision. Shock proofFog proof and Waterproof for 30 minutes under 4ft water. This red dot can also be used with a long range rifle scope for that perfect Backup System. Ade Advanced Optics model RD3-006, RD3-009, RD3-012, RD3-013, RD3-015 are designed to fit the slide/footprint of mounting plate made for Vortex Venom, Burris Fastfire, Meopta, Docter, Insight, Eotech MRDS, Sightmark Minishot.
Therefore Ade red dots are compatible for varieties of handguns with appropriate plate that is made for any of those brands. Ade Advanced Optics model RD3-011 is designed to fit slide/footprint/ pattern of mounting plate made for of Trijicon RMR only. Therefore any mounting plate made for Trijicon RMR will fits RD3-011. As such, the more you save the more we make. Please allow up to 24 hours for a response.If you give us the chance, we will make every effort to make it right for you! We strive for five stars from you in feedback and work hard to earn it. The item "ADE Large Size RD3-015-4 LARGE Red Dot Reflex Sight for handgun pistols 4 MOA" is in sale since Friday, November 9, 2018. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Red Dot & Laser Scopes". The seller is "opticsfactory" and is located in Oregon City, Oregon. This item can be shipped to United States.