Optics

Primary Arms GLx MD-21s Push Button 21mm Microdot w/ AutoLive – 2 MOA Red Dot

The Primary Arms GLx MD-21s Push Button Microdot is a premium 21mm micro red dot sight engineered for fast target acquisition and dependable performance in demanding conditions. Featuring a crisp 2 MOA illuminated red dot , it delivers precise aiming while maintaining a wide field of view for rapid engagements. Built from rugged aluminum, the GLx MD-21s is waterproof, fogproof, shockproof, and parallax-free for reliable operation in adverse environments. Equipped with AutoLive™ motion-sensing technology , the optic automatically powers on when movement is detected and enters sleep mode when stationary, significantly extending battery life. Its push-button controls, unlimited eye relief, and Picatinny rail mount make it an excellent choice for rifles and shotguns used in hunting, competition, tactical applications, and home defense. Features 2 MOA illuminated red dot reticle AutoLive™ motion activation technology 21mm objective lens for fast target acquisition Push-button brightness controls Fully multicoated lenses Parallax-free with unlimited eye relief Lightweight aircraft-grade aluminum construction Waterproof, fogproof, and shockproof Solar backup capability Compatible with Picatinny rail systems Powered by one CR2032 battery Ideal for rifles and shotguns Lifetime manufacturer warranty

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