One-piece construction blends the ring and base into a single unit. Eliminating the ring/base joint not only keeps weight to a minimum, it provides a stronger mount. Each ring cap is 5/8 wide, with four, TORX screws, to keep large scopes from slipping or shifting. Designed by Mel Forbes of New Ultralight Arms. SPECS: 7000 series aluminum, black, anodized, matte finish. Accepts 1 dia. scopes, unless otherwise listed in fits column for 30mm dia. scopes. Height from bottom of ring to top of receiver: Low - .400 (10.1mm), Med - .500 (12.7mm). High - .640 (16.3mm), X?High - .740 (18.8mm). Approx. weight 2.1 oz. (59 g). Some heights vary, see chart below. Rem. 700 also fits 721/722/725 and 40X models. Rem. Model Seven fits receivers with four screw holes. Savage AccuTrigger fits round top centerfire receivers with AccuTrigger. Win. 70 fits .860 rear hole spacing only. Product Specifications Item Height (Inches): 0.500 Color: Black Attachment Type: Direct Mount Finish: Matte Model Number: Standard Ring Height: 0.5 Elevation: 0 MOA Mount Type: Direct Make Model Fit: Kimber.8400v Scope Tube Diameter: 1 in