The folding AR stock adapter for the MSBS GROT rifle allows attaching any AR-style stocks made to MIL-SPEC specifications. Thanks to the folding option, you can adjust the dimensions of the weapon, for example, during transportation. This adapter is available in both "high" and "low" variants, allowing you to choose the appropriate option based on the used sighting devices, anatomical build, or selected stock solution. The height difference between both variants is 5.5 mm.