Proudly Designed And Made In Usa, Precision Machined From Aircraft Grade Aluminum Alloy With Hard Anodizing With Matte Black Finish Unique Contoured Bottom Designed To Fits On Ruger 10/22 Pre-Drilled And Tapped Rifle Receiver 4.67 Inch Overall Length With 11 Picatinny Rail Slots For Optimal Placement Of Scope, Dot Sight Or Iron Sight, And Flexible Eye Relief Adjustment Low Profile With See Thru Design For Use Of Front Bead Sight ASIN#: B018H9260C Model number#: MTU030T22