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; 100% Made in the U.S.A.; Fits: AR-15/M4/M16 Rifles and Similar Pattern Platforms