From Midwest Industries, their Side Folder with the Buffer Tube Adaptor to accommodate different stock attachments! The side folder can be configured to fold left or right. Features: Heavy-duty side-folding mechanism constructed from 4140 steel Full-length locking lug for maximum strength Solid positive lock up in both positions Steel clamp with large surface engagement Can be configured to right or left folding Modular design can accommodate different stock attachments Allows attachment of Mil-Spec buffer tube Adds 2.5 inches to firearm length in the open position Adds 0.75 inches to firearm length in the folded position Complete assembly weight: 8.4 oz. Steel parts are mag phosphate finished 100% made in the USA