Shop › MIDWEST SIDE FOLDER W/ BUFFER ADPTR MIDWEST SIDE FOLDER W/ BUFFER ADPTR $110.95 Midwest Industries Side Folder w/ Buffer Tube Adaptor, Black, Fits Picatinny Rail MI-STAP-SF-BT Quantity: Add To Cart Added! Midwest Industries Side Folder w/ Buffer Tube Adaptor, Black, Fits Picatinny Rail MI-STAP-SF-BT