Heavy-duty side-folding mechanism constructed from 4140 steel. Can be configured to right or left folding. Modular design can accommodate different stock attachments. Specifications for Midwest Industries Side Folder With Buffer Tube Adaptor: Manufacturer: Midwest Industries Color: Black Finish: Mag Phosphate Weight: 2.4 oz Fabric/Material: Aluminum Length: 2 in Condition: New Mount Type: Picatinny Country of Origin: USA Attachment Type: Picatinny Gun Type: Rifle Features of Midwest Industries Mi Side Folder With Buffer Tube Adapter Picatinny Full-length locking lug for maximum strength Solid positive lock up in both positions Steel clamp with large surface engagement 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 Package Contents: Midwest Industries Mi Side Folder With Buffer Tube Adapter Picatinny