My endeavor was a little loose when the action was open. I got one of the locker pins from cabela's. It didn't tighten it up any. I think they are mostly for keeping the pin from working out so it comes in contact with the forearm. I retuned it and got the x1 and x2 pins from bellum. The x2 was to tight. Had to lightly tap the x1 in. The hinge is tight now. Don't know if it helped with accuracy. It shot real good before.