Taso Spartan pump in Used shape, cycles no leaks. This came from a local seller and is a removable barrel in Taso threads. This has the earlier plastic / delrin pump handle. This cycles with no issues but I have not shot paint through it. The internals are velocity adjustable but this Spartan might still need different springs or a different powertube to in your correct velocity range. This barrel can be freak bored if you can find a custom machinist to do you machining. The barrel is currently no bored for any insert and see photo showing bore size. Sold as is.