Features: For AR15/M4/M16 Rifles and other platforms Super low profile .388" centerline when folded down Flips up to Mil-Spec height Intermediate aperture for long-range precision and close-range rapid engagement Dual locking detent springs for added reliability and crisp positioning Constructed of phosphate finished ordnance grade steel Hard coated 6061 aluminum base Rifle .5 MOA / Carbine .65 MOA click adjustments Weight 1.2oz