Primary Arms PA GLX MD-21S Red Dot (21mm)

The GLx MD-21S is a high-performance micro dot optic designed for agility and precise target acquisition from close-quarters to intermediate ranges. It pairs a non-magnified sight picture with an ACSS CQB reticle optimized for rapid engagement. The sight includes an advanced solar failsafe system that supplements the power source to prolong operational runtime.

Key Specifications

• The manufacturer is Primary Arms.
• The product name is PA GLX MD-21S AUTOLIVE ACSS CQB RED.
• The model designation is GLx.
• The objective diameter is 21mm.
• The reticle type is ACSS CQB.
• The optical power is 1X.
• The product type is a Red Dot sight.
• The subcategory is Red Dot Sights & Non-Magnified Optics.
• The optic features an advanced solar failsafe system for supplemental power.
• Intended use is for close-quarters to intermediate-range applications.

Compact and purpose-built, the GLx MD-21S provides a fast, unobstructed sight picture and a reliable power-management feature set for duty, range, or everyday carry setups. Its micro form factor and ACSS CQB reticle make it well suited for operators who value quick target acquisition and simplified sighting at short to intermediate distances.