Butt loaves did you have to do much alteration to make it fit the crosman stock? I have made a thumb hole stock for my .22 it helps to give it good accuracy, it is far superior to the small brocock rifle That I got rid of.Infact I would say it's better than quite a few rifles that I have had, so simple and easy to work on. Thankfully I had an air cylinder otherwise these pistols would have passed me by, they have reignited my fun button.