Please select this option if you want to have your MPA Custom Shop Rifle, which uses either the ESR or BA Comp Chassis, provided to you with a side folder.
This only applies to the custom shop rifle, at the time of order and does not apply to either the Matrix or Matrix Pro chassis. (Side Folders are not available for those chassis types).
The cost is $150. This option is not retrofittable.
Simply add this to the cart when ordering a Custom Shop Rifle if you want the side folder option.