Grab a Holosun 507K for your subcompact or single-stack handgun! The HS507K X2 is an open reflex red dot sight with all the industry-best features including up to 50,000 hours of battery life, parallax-free, Lock Mode to prevent accidental changes while conceal carrying, a multi-reticle system with 32 MOA circle and 2 MOA dot, and Shake Awake so it's always ready when needed. IncludedMulti Tool User Manual Lens ClothSpecsOptical DataReticle: 2 MOA Dot & 32 MOA CircleLight Wavelength: 650nmReticle Color: RedParallax Free: YesUnlimited Eye Relief: YesMagnification: 1xMulti-Coatings: YesElectronic DataPower Source: BatteryBattery Type: CR1632Battery Life (Hours): 50,000Brightness Setting: 10 DL&2 NVPhysical DataWindow Size: 0.58x0.77Dimension (in): 1.6x0.98x0.95Weight (oz): 1Mechanical DataHousing Material: 7075 T6 AluminumSurface Finish: AnodizedAdjustment per Click: 1 MOAW&E Travel Range: N/AEnvironmental DataStorage Temperature: -20?~65?Working Temperature: -20?~51?Submersion: IP67Vibration: 5000G