This riser mount has a 1.6-inch Picatinny rail with three slots, a low profile, and is see-through to allow for use with the original iron sights. It features a .50 of an inch saddle height, a side plat with spring tension for quick and easy installation, and is precision machined from aircraft-grade aluminum with matte black anodizing. Specifications: Material: Aluminum Weight: 1.6 ounces Pieces: 1 Rail Type: Picatinny/Weaver No. of Rails: 1 Dimensions: 1.6 by 1.6 by 0.7 inches (L x W x H)