Attach these shaft collar to your guide rods on any MPA Chassis cheek riser assy to provide a quick, easy and consistent method of relocating your cheek riser to your predetermined position. These work with chassis with and without a thumb wheel system.
For those with a thumb wheel design, simply remove the thumb wheel from the cheek riser assy, install these shaft collars, set the appropriate height position and your repeatibility to that position will be the same everytime you remove your cheek riser and re-install it.
Takes about 5 minutes to install. Price includes shipping.