The direct thread half NELSON by Q was designed with practical shooters in mind. Short, lightweight, and hearing safe, this is a silencer for those who prefer a more compact platform, or who don't want unnecessary length added to their favorite bolt gun. The half NELSON is made up of 100% titanium with a PVD coating, fully rotary welded with no outer tube (more internal volume), and features standard size wrench flats on the front and back for easily install and removal.