Midwest Industries Barricade Stop, Hand Stop, M-LOK Hand Guard, Black MI-MBS The Midwest Industries M-LOK Barricade Stop will give you the added functionality of a handstop and barricade stop. It mounts to any M-LOK compatible accessory slot and features teeth that allow user to achieve a solid anchor point for precise shots. Midwest Industries is a proven leader in the firearm industry. Made in the USA" focusing on the small details to make your rifle platform better.