Ed Brown Products Plunger Tube 1911 Blue. Will work with all 1911 types including the High-Capacity types. Dont let a loose poor quality plunger tube tie up your gun. Specifications for Ed Brown Products 1911 Plunger Tube: Manufacturer: Ed Brown Products Fabric/Material: Bar Stock Steel Gun Model: 1911 Package Contents: Ed Brown Products 1911 Plunger Tube What firearm models does the manufacturer say Ed Brown Products 1911 Plunger Tube is compatible with? The manufacturer suggests that Ed Brown Products 1911 Plunger Tube is compatible with 1911Ed Brown Products 821: Plunger Tube 1911 Blue