Universal adjustable adapter. Works on anything that already accepts an AR buffer tube, mil-spec or commercial buffer tube, except AR rifles and pistols that have functioning parts inside the buffer tube.
Examples of use: various shotguns including Remington 870 & Mossberg 500 (with grip assemblies made to accept AR buffer tubes), modular chassis for numerous bolt-action rifles, various 22’s and pellet guns designed to accept AR buffer tubes.
CNC machined out of aluminum aircraft grade alloy, Hard Coat Mil-Spec anodized black, with wrench flats and a keyway for better lockup.
Will definitely make for a better more comfortable fit and improved accuracy!!!