Bushnell BT71XPS Tac Optics Little P 1x 11mm Red Circle Dot/BDC CR2032 Lithium Black

TAC Optics Red Dot Sights can be easily used with both eyes open, increasing the shooter's awareness of the surrounding environment and providing faster target acquisition due to the parallax free design, as the dot follows the movement of the user's eye while remaining fixed on the target. Engineered for greater speed and accuracy, these sights allow you to focus on the target rather than a reticle, thus increasing accuracy. The Lil P prism sight measures just 2.5" and weighs 8 oz., making it the smallest prism sight on the market. This extremely compact model still provides the expected waterproof, shockproof and fogproof protection. The dot can be set to any of 12 brightness levels.