Holosun HS507K-X2 1X Multi-Reticle Black Hardcoat Anodized The Hs507K Is An Open Reflex Optical Sight Designed For Concealed Carry Pistol applications. Features Include Holosuns Super Led With Up To 50K hours Battery Life, Multi-Reticle System, And Shake Awake. Magnification: 1X Eye Relief: Unlimited Length: 1.60" Weight: 1 Oz Finish: Black Hardcoat Anodized Battery: Cr1632 Reticle: Multi-Reticle Adjustment Size: .5 MOA Optic Coating: Multi-Coated