Primary Arms SLx MD21 Microdot 21MM Objective Red ACSS CQB Reticle Fits Aimpoint Micro Footprint Anodized Finish Black

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. The Aimpoint Micro footprint ensures compatibility with standard MIL-STD 1913 Picatinny mounts, allowing seamless integration with existing tactical platforms. Primary Arms' optical engineering delivers bright, crisp dot presentation across variable lighting conditions, while the microdot's compact profile reduces parallax-induced aiming errors at typical combat distances.

This optic benefits shooters who prioritize mobility and target transition speed in confined spaces—from vehicle-mounted rifles to close-support defensive carbines. The black anodized finish resists corrosion and reduces glint, meeting operational security requirements for field deployment. Installation requires only a standard Picatinny mount and takes minutes without gunsmithing; the Aimpoint Micro footprint ensures drop-in compatibility with proven mounting solutions already trusted by military and law enforcement platforms worldwide.