NcSTAR Flip Dot Pro, Red Dot Optic, 22X16MM Objective, 3 MOA Dot, Folding Design, Matte Finish, Black, Includes Picatinny Mount, Dovetail Mount for Glocks, and Mounting Plates for Glock MOS and RMR VDFLIPPRO

The Flipdot Pro has a folding optical lens system that flips up with push of a lever and automatically turns on when deployed and turns off when the lens is folded down in the locked into position.