This is a .22 with the original .25 barrel, the rifle is in exceptional condition and has never been used outside, the gun shoots perfectly with either barrel fitted. The .22 barrel is only three months old, and to swap to the .25 takes about thirty minutes , comes with pump and filler valve and pressure gauge also hard case (scope not included) This is a fantastic piece of kit with two calibre options but it’s not getting any use since the purchase of my PCP rifle ( HW100X).you will need to own a chronograph as this rifle is capable of exceeding uk limits if over pumped when changing calibre.you can fully test the rifle before buying as I have a shooting range in my back garden