It projects a 5-MOA dot through rugged optics, and is compatible with a large selection of firearms. The Bushnell Advance Micro Reflex Sight is THE choice for lightweight performance. Black with 5 MOA Dot reticle. Waterproof Construction - O-ring sealed optics stay dry inside, even when totally immersed in water. Shockproof construction - Built to withstand bumps, bangs, drops and the rough-and-tumble environment of the field.Compatible with pistols and rifles. Compatible with Glock® Mount Plate #1.