There was also a conversion kit made by Norinco with a new barrel, recoil spring and instructions for modifying feed rails for .38 Tremendous.4 yrs before FYI – This firearm, the Tokarev TT-33 Pistol, is frequently requested with the C&R license. You'll need to phone Brownells although and upload your license to them.Recoil: The 7.62x25mm Tokarev