The A.R.M.S.® #19 ACOG® Throw Lever® Mount for ACOG® scopes features most of the design of the #19, with the addition of the ACOG® channel. This mount provides the ACOG® scope three positions of added relief to select from. NSN 5340-01-462-0476 The aluminum base is secured by A.R.M.S.® steel locking feet and levers and the no-mar patented buffer pads. Fits all Mil-Std Dovetail A.R.M.S.® Rails.