Extruded aluminum tube replaces the factory magazine cap and increases magazine capacity without adding excess weight. Attaches quickly without gunsmithing, and requires no permanent modifications to your 870. Ratchet base on magazine retains the tube; cannot back off or loosen during firing if properly installed. Kit includes extended-length spring to maintain correct function and feeding. Separate models available to increase capacity by 2 or 3 rounds when using 2¾" shells.
SPECS:
6061T6 aluminum, hardcoat anodized finish, matte black. Minimum required barrel length: 18.5".