4AW V4 Adjustable Bag Base (Right Hand Shooter)This unit is the widest and most stable of our Adjustable Bag Bases. It is otherwise the same as our V3 option but designed to accept larger Target Bench rest style rear bags, up to 6 1 4" wide bags to create the most stable rear rifle support. This unit has both elevation and windage adjustment and bonded rubber screw in feet. Minimum frame height 22mm with 22mm in height adjustment. Maximum rigid based bag dimensions 220mm x 155mm. This base does