New - Caldwell Matrix - 101-600 Two piece sliding frame incorporates an open central channel with plenty of clearance for hi-capacity detachable magazines as well as lever action guns Convenient storage area incorporated into the front of the base features a removable lid that adds additional clearance when detached but also doubles as a rubberized rear support surface for firing handguns when left in place Overmolded front and rear supports protect the guns finish but are firm enough to prevent any give or play