Swamp Fox Compact Riser Mount with Quick Release Grooved See-Through Rail for AR15 M16 and M4 Rifles, Black Matte, 1-Inch Made of lightweight black matte anodized aircraft-grade aluminum Jaw side grip panel for universal mounting 4-inch rail will adapt to any gun or mount for Picatinny accessory use Quick release 1-inch high riser and adaptor Comes with a 1-year limited warranty