*ACCURATE - This Beileshi 3-4 MOA red dot sight allows for accurate, both eyes open shooting*2 HEIGHT MOUNT OPTIONS - Offers two height options (Low and Lower 1/3 Co-Witness), lending its functionality on any platform.*DURABLE - A shockproof aluminum body displays extreme durabilityThis one has been a boon to a wide range of daytime applications including hunting, tactical scenarios and precision shooting. Ideal for close-range and general shooting. Moreever, It is most helpful in providing optimal visibility and enhanced image clarity, which could increases light transmission during low light situations.and let shooters cater the dot intensity to the situation at hand.