What does "sporterize" mean?

Question

I work for a sporting goods store and we sell collectable military rifles (M44's, 91/30's, SKS', Enfield's, etc.) Every once in a while I hear a customer talk about how they "sporterized" their rifle, but I don't know what that means. Please explain.

Answer 1

It means they had the stock cut down and the weapon lightened so it was easier to use it as a hunting rifle.