Strong, lightweight, extruded aluminum tube increases the magazine capacity of 12 gauge shotguns. CNC-machined to provide uniform inside and outside dimensions for consistent and reliable feeding. Installs in minutes using a machined union nut that attaches to the end of the factory tube. Some models may require removal of factory magazine tube crimp. Use the factory follower and the extended magazine spring provided with the tube. All models fit 12 gauge only.
SPECS:
Aluminum, hardcoat anodized, matte black finish. 12 gauge only. Remington fits 870, 1100, 11-87. Mossberg fits 590,930,935. Designed to match OEM styling. Includes barrel nut, extension, spring, & end cap