Tiger Rock AR-15 Pistol Stock Buffer Tube Foam Buffer Tube Foam. It's made of high quality foam and is designed with a low profile to clear the charging handle action. Note: Buffer Tube is not included Specifications for Tiger Rock AR-15 Pistol Stock Buffer Tube Foam: Manufacturer: Tiger Rock Condition: New Features for Tiger Rock AR-15 Pistol Stock Buffer Tube Foam: Width: 1.25" (expandable) Matte Black Fits: AR-15 Package Contents: Tiger Rock AR-15 Pistol Stock Buffer Tube Foam Tiger Rock T-O: AR-15 Pistol Stock Buffer Tube Foam Buffer Tube Foam