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Mfg Item #: MICBUIS
For AR15/M4/M16 Rifles and other platforms - Mil-Spec height - Standard A2 rear sight aperture (Can use Trijicon replacemet apertures- Not included) - Billet machined from T6 6061 aluminum - Hardcoat anodized - Rifle .5 MOA / Carbine .65 MOA click adjustments - Weight 1.9oz