Machined, aluminum, slot blank drops-in easily to fill the empty sight dovetail for a clean-looking barrel. 5-40 set screw locks blank in place and makes removal easy if you want to put a sight back in. Black, anodized finish blends well with most matte and gloss blue barrel finishes.

SPECS: Aluminum, black anodized. 3/8" (9.5mm) x 5/8"” (15.9mm). Fits standard, .375" (9.5mm) x 60° dovetails.