The Midwest Industries 1913 Side Folding Buffer Tube Adapter allows users to install a buffer tube/receiver extension onto platforms equipped with an M1913 interface or Picatinny adapter. Allows attachment of Mil-Spec buffer tubes or pistol style tubes in order to use a variety of stocks and braces for either rifle or pistol use.

Features a heavy-duty side-folding mechanism constructed from 4140 steel with a full-length locking lug for maximum strength. The folding mechanism can be configured for left or right side operation and has a solid, positive lock-up in both open and folded positions.

• Modular design can accommodate different stock or brace attachments
• Adds 2.5 inches to firearm length in the open position
• Adds 0.75 inches to firearm length in the folded position
• Steel parts are mag phosphate finished