Product Features Proudly Designed and Made in USA Fits AR15 with Standard Delta Ring Assembly, Barrel Nut and Round Handguard Cap Lightweight, Slim Tubular Profile for Positive Handling Top Rail Extends to Upper Receiver for Continuous Mounting Platform Includes removable two 2-Slot and two 4-Slot rail sections for 3, 6 and 9 O'clock positions Precision Machined from Aircraft Aluminum with Black Anodizing Simple and Friendly Installation, No Gunsmith Required Product Specifications Material: Aluminum Weight: 6.9 oz Pieces: 2 Rail Type: Picatinny/Weaver No. of Rails: 1 Length: 7.28 inch Width: 1.89 inch Height: 2.17 inch