Yankee Hill Machine Flip Rear Sight Picatinny

The Yankee Hill Machine YHM-9680 is a folding rear iron sight for Picatinny-equipped firearms. Its flip-style peep apertures and 1/2 MOA windage adjustment provide a familiar mechanical aiming system without magnification or illumination. A quick-release thumbscrew secures the steel base to the rail, while the aluminum stem helps keep weight to 2.4 ounces. The sight locks in its deployed position and folds to 0.840 inch above the upper receiver when stowed. It is designed to co-witness with standard M16/M4 front sights and YHM front sights.Quick Facts Folding rear iron sight; no magnification or illumination Standard flip-style rear peep apertures 1/2 MOA windage adjustment Mounts directly to a Picatinny rail Quick-release thumbscrew attachment Locks in the deployed position Co-witnesses with standard M16/M4 front sights Folds to 0.840 inch above the upper receiver Made in USASpecifications Manufacturer: Yankee Hill Machine Model: Flip Rear Sight Manufacturer part number: YHM-9680 UPC: 816701013344 Sight type: Folding rear iron sight Apertures: .065-inch and .200-inch flip-style peeps Adjustment system: 1/2 MOA windage Mounting interface: Picatinny rail Mounting hardware: Integrated quick-release thumbscrew clamp Base material: Steel Stem material: Aluminum Color: Black Weight: 2.4 oz Folded height: 0.840 inch above upper receiver Front-sight compatibility: Standard M16/M4 and YHM front sights Country of manufacture: USA