Primary Arms SLx MD-21 Push Button 21mm Microdot – AutoLive®

The SLx MD-21 is an advanced micro dot sight that incorporates the latest technologies and materials to deliver exceptional CQB performance. Weighing only 5 ounces, the SLx MD-21 is both lightweight and rugged, featuring upgraded mounting hardware for guaranteed rigidity and precision when you need it most. If you are looking for a taller mount, check out the SLx 2.26″ mount for use with night vision or if you prefer a more headsup shooting position. The ACSS CQB variant comes with multi-reticle select allowing you to easily swap between the full reticle, chevron, chevron + BDC, or the chevron + horseshoe.

The powerful LED emitter features 12 total illumination settings and 2 night vision settings with an ultra-long runtime for full operability in any environment. Additionally, the AutoLive® technology shuts off the reticle when no motion is detected for two minutes and immediately turns on as soon as you pick it up.