A super lightweight aiming solution for most rifles, shotguns, airguns, and crossbows. High-strength polymer housing in flat black color. This red dot sight provides optimum performance under most everyday sport shooting conditions. The intensity of the CQB reticle dot has 5 level adjustment settings for proper contrast against the full range of background light. Windage and elevation are adjustable with a 1 MOA click value. Built-in rail mount has metal-to-metal clamping and works on both Weaver and Picatinny-type rails. Magnification: parallax-free 1x Eye relief: Unlimited Dot size: 3MOA center dot and 20MOA circle Objective lens size: 30mm Rail type: Fits onto Weaver and M1913 Picatinny bases. Center height: 28mm Overall length: 142mm (6 inches) Weight: 6.8oz. Power source: One CR1620 Lithium cell (included) Battery life: 200hours (with light intensity set at 3)