GLx MD-21S 2 MOA Reticle

The GLx MD-21S Microdot Red Dot Sight from Primary Arms offers professional-grade features in a compact and durable package. As part of the GLx series, it’s built for shooters who demand enhanced performance and reliability under real-world conditions.

Equipped with a crisp 2 MOA red dot, this optic ensures quick target acquisition without obstructing your field of view. AutoLive® technology conserves battery by shutting down when idle and reactivates instantly with movement. With a premium 7075-T6 aluminium housing, push-button controls, and compatibility with the Aimpoint® Micro footprint, the MD-21S is built to perform on rifles, shotguns, or as an offset red dot for LPVO setups. 

Features:

• Solar Failsafe and AutoLive technology extends battery life
• Fully multicoated lens
• Side mounted push button controls
• Ultra bright 2 MOA dot reticle
• Night vision compatibility
• Shockproof and waterproof aluminium construction
• Black anodised finish
• Includes low mount and absolute co-witness mount with spacer (1.41" or 1.535" height)
• Standard microdot footprint

The 2 MOA red dot offers a precise yet uncluttered aiming solution for both rapid target acquisition and consistent accuracy at varied distances. Designed for intuitive use, the dot allows you to stay focused on the target while maintaining full situational awareness — ideal for dynamic environments and fast-moving engagements. Its simplicity and reliability make it a preferred choice for both primary and secondary optics on a wide range of firearms.