The BSA pistol scope is simple but effective. Parallax is set for 50 yards, and the click value is 1 MOA. BSA pistol scopes are rugged, durable and simple.This BSA pistol scope is simple yet effective. Parallax is set for 50 yd and windage and elevation adjustments are set for 1/4 MOA. The multi-coated optics provide a clear sight picture that allow for almost instant target acquisition. BSA Pistol scopes also offer a generous eye relief of 12 to 20 inches, allowing this versatile scope to double as a scout scope. Features: Full multicoated lens 50 yd parallax setting Limited 1 year warranty