Nightforce Optics 5.5-22x56 NXS Riflescope, Matte Black Finish with Illuminated MOAR Reticle, Zero Stop Turrets, .250 MOA, 30mm Tube 100 M.O.A. of internal adjustment Exceptional optical integrity Speed and accuracy in all situations Rigorously tested for perfection Composed of 6061-T6 Aircraft Grade Aluminum