Any rifle owner knows what a pain it is to correctly mount and zero optics, and the entire process makes rifle shooters reluctant to experiment and change out their setup. Fret no longer, thanks to the Midwest Industries AR-15 1-Piece Extended Scope Mount. The Midwest Industries AR-15 1-Piece Extended Scope Mount is a quick-detach design that can be removed and remounted with a simple pull or push of a lever. The company ensures that each contact surface is machined to precise tolerances in order to provide a complete return to zero. Length: 5.875 inches Ring width: 0.85 inch Weight: 8.4 ounces Works with objective lenses up to 56mm in diameter The Mid Mfg: Midwest Industries, Inc.