Fits Discovery, Maximus, 2240, 2250, 2260, 2300KT and 2400KT. To fit well barrels 14.5" and longer are recommended. You will need to figure out what length barrel will work best for the parts you plan to use.

  This shortened Discovery tube is 15.5" long with custom-machined holes and slots. It's honed so the inside is smooth as glass for a perfect seal and smooth hammer function. It has no caliber markings, it works with either caliber. The gauge hole is smaller, similar to the 1701P and Marauder Pistol, so it's stable to mount the gauge without a stock or forearm. This tube is intended for custom PCP carbine and pistol builds. It will fit Discovery, Maximus, 2250, 2400KT, 2260 and similar models. The Maximus valve will not fit this tube. Discovery-compatible valves like the Magnum Valve I have listed will fit. If also using my custom valve screws for Discovery this tube will handle 3000 PSI safely.

 Both inner breech-screw holes (center position) are threaded for use with Discovery, Crosman Custom Shop and standard steel breeches. My Magnum Valves will fit with either inner breech-screw location. A Discovery valve will block the hole the standard breeches use, that valve needs to be notched to clear the screw.  

 These have a laser-engraved serial number that may be on the side, top or bottom of the tube. There may be some light scratches from handling during the machining process.