The Stolen Silencer Sleeve is designed to slide directly over Stolen Barrel , Stolen Silencer and Fiction Troop pegs, making grinding easier on a wide variety of surface types. Each sleeve is made from Stolen's proprietary Thermalite material to resist cracking and deformation while sliding just as well, if not better, than chromoly pegs. Note: This is not a peg! This is a plastic outer sleeve designed for Stolen Barrel pegs or as a replacement outer sleeve for the Stolen Silencer pegs.