Once again Harry,, Just say the word,, I will send my pistol to you. I think yours is not a 2250, but a 2300 or a 2240 custom?? As you know,, the 14.5" 22 brl adds ALOT of power to the XX c-o2 guns. In all honesty,, this latest post of mine,, a stock valve. (My only funcional B&A valve is in my 2260 rifle) HMMMMM?? Of course if I send you my 2250 pictured in this thread & you send me your 2240 to "Hop Up" It may take me quite some time to "tune" your pistol for you. If you want to end up with one like in my pics. (Performance wise,, not including custom grips & inlays on fore arm),, its gonna take me 2 or 3,,,,,,,,,,,,,,,,,,,,,,,,,Hours!!LOL!! (Inside Joke between me & Harry!!LOL!!) Let me know Buddy!! Of course, you could just call me?? Tim.