Carlsons 04510 Shotgun Magazine Extension 12 Gauge Benelli Nova/Super Nova CZ 712/912 Beretta Extrema 10-Shot Blued Steel

The Carlson's 04510 magazine tube extension is designed for 12 gauge shotguns, replacing the factory magazine cap to boost the tube's shell capacity to 10 rounds of 2-3/4" shotshells.

The extension tube is constructed from solid blued steel for strength and corrosion resistance. The kit includes the threaded extension tube, a replacement spring, a base clamp with integrated swivel stud for sling attachment, and a high-visibility follower for reliable feeding.

This model is specifically designed to fit the Benelli Nova, Benelli Super Nova, CZ 712, CZ 912, and Beretta Extrema 12 gauge shotguns. Installation requires no permanent modifications - the extension threads on in place of the existing magazine cap.