Kj, that wood stock is beautiful. I'm thinking of getting a 2260 stock and modifying it to fit the 2240. I really like Carsons tactical look, I had the 24" barrel but decided to cut and crown down to 14" so I now have an extra 10" barrel. The 24" barrel and 2260 tube was badly scratched so I sanded it down need to get a can of Krylon and paint everything when I have some extra time. Still have some modding to do, paint job,muzzle cover, HiPac and .25cal barrel from Mountain Air or Trackofthewolf.lookin good to start. .you may get the best deal on a .25 barrel from crosman. their.25 barrels are really good and come from green mountain , i believe. then just send it and have someone machine it to fit your breech. the barrel will need turned down . if the breech you're using is a crosman breech send it with the barrel for fitting , and ask whoever is doing the machining to drill and tap another hole in the breech so you have 2 barrel hold down grub screws , instead of one. when switching to .25 you have to realize the outer diameter of the barrel is 1/2" as opposed to 7/16" like the normal crosman barrels. stuff like barrel to tube clearance might be an issue, i've read where some had to put a riser under the breech. if you need a barrel band you'll have to have one made. or drill out the existing one. the style barrel band of a 2250 has a lug on the bottom that can accept a machine screw to afix the front of the stock to. this will give more stability than just the 2 grip screws . there are adapters that go on the end of the gas tube that will allow you to put an ar type collapsable butstock on that. so many options and alot of fun.hope this helpspeacekj