CGW 10X barrel bushing for the .550” diameter heavy barrel SP-01’s – Shadow 2, SP-01 manual safety and SP-01 Tactical in 9mm and .40 S&W.  Also fits 75B in .40.  Made from 4140 carbon steel and heat treated to RC 57-59, vastly superior to the loose fitting, soft, non-heat treated OEM bushing.  Only works with the standard 4.7” barrel, will not work with any extended or threaded barrels.  Reduces barrel muzzle play to -0- at lock-up.  This is a direct replacement for the OEM bushing.  Many shooters have verified a significant improvement in accuracy. Note:  Very minor fitting may be required, can be installed in minutes with common tools.  Will not work with any threaded or extended barrel.