ProductDescriptionTactical Black Finished Machined Aluminum Ruger 10-22 Rifle 15"" Rifle Weaver/Picatinny Rail, Perfect for attaching Bipods, Flashlights, Sights and Lasers. - Compatible with Ruger 10/22 Rifle. Length is 15"". N.W. (OZ): 15.4. Precision Machined Aircraft Grade Aluminum Construction With Black Finish. - Rail System Provides Weaver/Picatinny Rails. Installs On Most Rifles In Seconds No Gunsmithing Needed. Built Tough for Extreme Conditions. - Separate Reticle Patterns In Red Color Display 7 Brightness Settings. Tubeless Open Reflex Design. Windage and Elevation Adjustments. - Deluxe High Tech Durable Machined Aluminum Military Quality Bipod With Non Slip Rubber Feet, Critical Position Locking, Spring Loaded Legs With Folding & Height Adjustability Features.