The Primary Arms SLx 3x21 Micro Magnifier for Proprietary Primary Arms Mount, Black is a magnifier that fits Proprietary Primary Arms Mount.
The SLx 3x Micro Magnifier is an exciting approach at optical magnifiers, combining high-clarity 3x magnification with a miniaturized body. This new optic is part of Primary Arms' SLx line. SLx optics built Primary Arms Optics' reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve users in any environment. Weighing only 5.3 oz, the SLx 3x Micro Magnifier is a miniaturized, lightweight magnifier that extends the effective range of a red dot sight or 1x prism scope. The SLx 3x Micro Magnifier features an innovative 'micro-sized' design that reduces its footprint compared to traditional magnifiers. This makes it ideal for close-quarters carbines, where agility, ergonomics, and handling speed are paramount.
A magnifier sits behind a red dot or holographic sight to add magnification, and flips to the side when you want the unmagnified view. Check the mount height matches your sight.
How It Compares
Also compare the SLx Micro Magnifier, Magnifier, 3x Magnification. Browse all red Dot Magnifiers and the full Primary Arms range. New to this? Read our guide: Do You Need a Magnifier for Your Red Dot?.
Ideal For
- Extending the effective range of a red dot or 1x prism scope
- Close-quarters carbines where a small, light magnifier matters
- Owners of the proprietary Primary Arms magnifier mount
Key Features
- 3x Magnification
- 21mm Objective lens diameter
- 7.0mm Exit pupil
- 5.3 ounces
- Compact design
- Micro Magnifier
- 3X Magnification
- 21mm Objective
Compatibility & Fitment
Fits Proprietary Primary Arms Mount. Not sure it fits? Contact us before you order and we will check for you.
Technical Specifications
Brand | Primary Arms |
Type | Magnifier |
Model | SLx |
Power | 3X |
Objective | 21mm |
Color | Black |
MPN | 510010 |
UPC | 818500015826 |
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 SLx Micro Magnifier fit?
Fits Proprietary Primary Arms Mount.
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.
