SKU: PAO-SLX-MD-21-ACSS
UPC: 818500018261
MPN: PA-SLX-MD-21-ACSS
The Primary Arms SLx MD21 Microdot 21MM Objective Red ACSS CQB Reticle sight is a compact, fast-acquisition optic purpose-built for close-quarters battle and rapid target engagement. Designed for law enforcement tactical teams, military operators, and civilian shooters who demand reliability under high-stress conditions, this red dot delivers the speed and accuracy required in dynamic shooting environments.
The microdot form factor minimizes footprint while maintaining optical clarity, making it ideal for AR-15 platforms, pistol-caliber carbines, and precision rifles where space and weight savings matter. Built with a 21mm objective lens and housed in hardened anodized aluminum, the SLx MD21 features the ACSS CQB reticle—a purpose-designed aiming pattern that enhances target acquisition at intermediate and close ranges without cluttering the sight picture.
This optic benefits shooters who prioritize mobility and target transition speed in confined spaces—from vehicle-mounted rifles to close-support defensive carbines. The Aimpoint Micro footprint ensures compatibility with standard MIL-STD 1913 Picatinny mounts, allowing seamless integration with existing tactical platforms. The black anodized finish resists corrosion and reduces glint, meeting operational security needs.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
