The Primary Arms GLx MD-21S Red Dot Sight ACSS CQB Reticle Aimpoint Micro Footprint, Black is a red dot sight that fits Aimpoint Micro Footprint.
The GLx MD-21s is a high-performance micro dot optic, built for superior agility and precision from close-quarters to intermediate range. This red dot features an advanced solar failsafe system, supplementing your power supply to ensure the optic operates with maximum runtime.
A red dot sight lets you shoot with both eyes open and puts the aiming point on the same plane as the target, which makes target acquisition fast. Check the footprint and height suit your mount and firearm.
How It Compares
Also compare the SLx MD-21 Microdot Mounts to Picatinny, GLx RS-15 Mini Reflex Sight, 26x20MM, 3 MOA Red Dot and SLx MD-25 Microdot Red Dot Sight for 1913 Picatinny Rail. Browse all rifle Dot Sights and the full Primary Arms range. New to this? Read our guide: Co-Witnessing Iron Sights with a Red Dot.
Ideal For
- Shooters who want the ACSS CQB reticle rather than a plain dot
- Rifles set up for the Aimpoint Micro footprint
- Close-quarters to intermediate range work
- Extending runtime with the solar failsafe system
Key Features
- Side Mounted Push Button Controls
- Ultra Bright 2 MOA Dot Reticle
- Night Vision Compatibility
- Shockproof and Waterproof Aluminum Construction
- Microdot
- 21MM Objective
- Red ACSS CQB Reticle
- Anodized Finish
Compatibility & Fitment
Fits Aimpoint Micro Footprint. Not sure it fits? Contact us before you order and we will check for you.
Technical Specifications
Brand | Primary Arms |
Type | Red Dot Sight |
Model | GLx |
Power | 1X |
Objective | 21mm |
Reticle | ACSS CQB |
Color | Black |
MPN | 810026 |
UPC | 818500018285 |
US Shipping & Support
Genuine Primary Arms, brand new and covered by the manufacturer's warranty. Shipping is free on US orders of $99 or more, and smaller orders ship from $6.95. Questions about fit, mounting or which option suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What does the GLx MD-21S Red Dot fit?
Fits Aimpoint Micro Footprint.
Is this a genuine Primary Arms product?
Yes. It is a new, genuine Primary Arms product sourced through an authorized US distributor.
How much is shipping?
Shipping is free on US orders of $99 or more. Orders under $99 ship at a flat rate from $6.95 to $9.95, depending on the order total.
