STEVENS M-62 BY SAV.

CUSTOMER BROUGHT IN A STEVENS M-62 ( SAY'S MANUFACTURED FOR SAVAGE IN CANADA) FAIRLY NEW GUN, JAMBS, DOUBLES, AND JUST PLAIN DON'T WORK. NO BROKEN OR WORN PARTS (THAT I CAN SEE). CANN'T FIND ANY INFO ON THIS MODEL. TO REMOVE THE BOLT YOU HAVE TO TAKE THE BARREL OFF FIRST. CAN ANYONE HELP WITH A PARTS BREAK DOWN OR YEAR OF MGF.? OR SUGGESTIONS. THANKS