Athlon Optics 1x Midas BTR OS11 Open Red Dot Sight, 3 MOA Dot Reticle

Rather than like the majority of open sights for handguns in the market that have two separate upper pieces of chassis that hold the lens in place with the tendency of the lens cracking, the OS11 upper body is constructed by a whole piece of aluminum that can withstand thousands of rounds without any problem. The unique design of battery chamber, located at right side, allows you to change your battery effortlessly and quickly without dismounting your sight and losing your zero.The illumination switch buttons is conveniently located on left side and can be simply turned on and off by holding on the + button. Furthermore, you can mount the sight on certain selective handgun models, such as Glock, by taking off the picatinny rail mount and mounting it on the adapter plate ( you need to buy the adapter plate separately) that has been mounted on your handgun already. To remove the picatinny rail mount, just simply loosen the two top screws on the main chassis.FeaturesEtched Glass ReticleReticle etched on glass that provides excellent backing support for complex reticle design and offers great durability and much higher shock resistance to recoilAdjustable Illumination SettingsMultiple Adjustable Illumination settings provide best visibility under different ambient light environmentFully MulticoatedFully Multicoated optics effectively reduces reflected light and increases the transmission of light giving you a brighter image than normal single coated lensesAircraft AluminumThe aircraft grade aluminum that has exceptional strength and superior mechanical integrity will protect these world class optics no matter what punishment you throw at it.One Piece Chassis ConstructionHeat treated one piece Chassis gives the scope extra strength. A one piece Chassis also is better at keeping moisture out thus keeping your scope fog proof for the life of the productWaterproofWaterproof to protect the scope in the harshest weather conditions or if accidently submerged underwaterFogproofFogproof to allow you to immediately engage your target when you take your rifle to cold ambient temperature from warm insideShockproofRobust mechanical system with special designs on both control and erector system that give you the ultimate recoil resistance to withstand 600G recoil for 1000 times.Nitrogen PurgedNitrogen purging dramatically reduces the moisture inside the tube and helps maintaining fogproof and waterproof.Picatinny Rail MountIncluded Picatinny Rail Mount that is compatible with most of bases used by most of hunting and tactical rifles