The Fixed Butt Plate Frame is part of the MBA-2 and MBA-4.
Ordered by itself the Fixed Butt Plate Frame is used to convert your MBA-1 or MBA-3 Adjustable Butt Plate to the fixed style butt plate used on the MBA-2 or MBA-4. Additional parts are listed below. Click on the Schematic tab for reference.
The Fixed Butt Stock Frame will fit on all MBA buttstocks.
Not Included: 2 Butt Plate Screws (SCW-03) are used on end of stock frame to attach Recoil Pad – Original (RL-006) to Frame.
*If you are looking to remove your adjustable Butt Plate Assembly on the MBA-1 or MBA-3 to convert your adjustable butt plate to a fixed butt plate like an MBA-2 or MBA-4, you will need to purchase the following:
For the MBA-1 (to convert to the MBA-2 style fixed butt plate): This Frame, 2 Butt Plate Screws (SCW-03) and 1 A2 Buttstock Screw (A2-01)
For the MBA-3 (to convert to the MBA-4 style fixed butt plate): This Frame, 2 Butt Plate Screws (SCW-03) and 1 Recoil Pad – Original (RL-006).