Alpine Archery Soft Loc Quiver. The Soft Loc Quiver is a multifunction universal quiver system with almost every feature you could ask for in a quiver and no compromises on quality or durability. The most unique feature is, in fact, the quiverÆs namesake, the Soft Loc Rail Gripper. This device is a pair of rubber grippers similar to the arrow gripper on the quiver. These soft rail grippers are mounted to a plate that permanently mounts to the bow. The two vertical guide rails that separate the hood from the arrow gripper press snugly into the mount anywhere along the length of the composite guide rails for infinite vertical adjustment. This means you can adjust the quiver high enough to keep your arrow nocks out of the mud when you stand your bow on the ground. The soft rubber rail gripper acts as a great vibration dampener between the bow and quiver, which drastically reduces noise and vibration while shooting. Alpine Archery Soft-Loc Quiver.