Monstrum Ruger 10/22 Picatinny Rail Mount for Scopes and Optics Description Features: 100% Weave Picatinny rail mount for Ruger 10/22 model rifles Allows for the mounting of Picatinny or Weaver standard scopes, red dots, magnifiers, or other optics Installs via included set screws into the Ruger 10/22 factory mounting holes Crafted from lightweight aluminum, 4.5 inches in length and 1.1 ounces in weight Product Details: Brand: Monstrum Color: Black Sport: Hunting Item Weight: 1.1 Ounces Material: Aluminum Compatible Devices: Rifle Mounting Type: Weaver Mount, Picatinny Mount Night vision: No Brand: ‎Monstrum Color: ‎Black Sport: ‎Hunting Item Weight: ‎1.1 Ounces Material: ‎Aluminum Compatible Devices: ‎Rifle Mounting Type: ‎Weaver Mount, Picatinny Mount Night vision: ‎No Item Package Dimensions L x W x H: ‎4.92 x 0.98 x 0.75 inches Package Weight: ‎0.04 Kilograms Brand Name: ‎Monstrum Manufacturer: ‎Monstrum Part Number: ‎Z70 Date First Available: August 4, 2014