UPGRADE KIT MT-96 MT-95 TMH TWISTED FLUTING OUTER BARREL 20.7" STEEL SPRING GUIDE WITH THRUST BEARING MT-97 MT-92 TMH TWISTED FLUTING OUTER BARREL 15" PISTON CUP WITH AIR BRAKE MT-93 VARIABLE MASS PISTON MT-94 VARIABLE CAPACITY RING CXP-TOMAHAWK