Primary Arms GLx MD-21S Micro Red Dot Sight – 2 MOA with AutoLive & Solar Failsafe

The Primary Arms GLx MD-21S is a high-performance micro red dot optic engineered for shooters who demand reliability and precision from close-quarters to intermediate ranges. Featuring a crisp 2 MOA red dot reticle, the MD-21S delivers fast target acquisition and consistent accuracy in virtually any shooting scenario — whether you’re running competition stages, heading into the field, or building a home defense setup.

One of the standout features of the GLx MD-21S is its advanced AutoLive motion-activation technology, which automatically powers the optic on when movement is detected and powers it down during periods of inactivity — maximizing battery life without sacrificing readiness. Complementing this is an integrated solar failsafe system that supplements your primary battery, helping to ensure the optic remains fully operational even when battery levels run low.

Built to GLx performance standards, this micro dot is designed for serious use on pistols, rifles, and carbines alike. Its compact, lightweight form factor makes it ideal for minimalist builds where every ounce matters, while its rugged construction is built to withstand the rigors of regular range use and field conditions.

Key Features:
• 2 MOA red dot reticle for fast, precise target acquisition
• AutoLive motion-activation for hands-free power management
• Solar failsafe system for extended runtime reliability
• Compact, lightweight micro dot form factor
• Suitable for pistols, rifles, and carbines
• Primary Arms GLx performance-grade construction

Available online at DeepRootsRifleCo.com with fast shipping nationwide, or stop by our Eustis, Florida gun store to see it in person and get expert advice from our knowledgeable staff. Order yours today and upgrade your optic setup with confidence.