Clamps around the castle nut to eliminate any fitting issues associated with different sized buffer tube diameters. Use with a single point sling, or install a front sling mount for two-point sling attachment. Contoured clamping halves draw tight with Allen head cross-bolt for a solid, no-slip fit. Loop model accepts HK-style clasps and other clip-on sling fasteners. Precision machined from 7075 aluminum alloy and Mil-Spec Type III hardcoat anodized. Ambidextrous Loop provides the same provisions for clip-on slings.
AR-15, Issue:10, Page:066
Big Book Catalog, Issue:68, Page:071
SPECS: Aluminum, matte black. Fit AR-15 rifles and carbines with collapsible buttstocks. 5⁄8" long, 23⁄8" (6.1cm) wide, 2” high.