Product Details
The Primary Arms SLx MD-21 is a clean, reliable red dot that works on most modern rifles. It's got a 2 MOA dot (that's a small, precise aiming point) that stays bright in daylight and low-light conditions alike, mounts right to your gun's Picatinny rail, and comes in a tough anodized black finish built to last. If you want something straightforward that won't overcomplicate things, this one delivers.