My 2 freinds just bought Ruger Mini 14 in 7.62X39 caliber. we were trying to figure out what are the options for the installing bipod on it. I was originally thinking just drilling a hole on the button and screwing in a swivel hinge and attach a bopd to it ut it could get in a way of gas piston. So my question is what are my options for bipod installation? One mini is in fiberglass stack and another one in wooden