The Carlson's Choke Tubes 04518 Magazine Extension for 12 Gauge Benelli M2, Benelli Super Black Eagle II, M1, Super Black Eagle I, and Super Black Eagle III delivers a durable 10-round magazine extension in a Blued steel finish. Built to integrate with Benelli magazine tubes, this extension adds reliable capacity for fast follow-up shots and extended field performance while maintaining a slim profile that preserves balance and maneuverability. Constructed from steel with a corrosion-resistant blued finish, it withstands rugged hunting and field conditions and features secure threading for dependable attachment. The 10-round capacity is ideal for waterfowl and upland hunts where shot sequence and placement matter, and the design preserves consistent feeding and point-of-aim accuracy. This accessory is crafted to complement Benelli platforms, offering robust durability, smooth operation, and cross-model compatibility that supports extended shooting sessions and practice alike. Whether upgrading for longer days in the field or precision training, Carlson's magazine extension provides practical, reliable performance that enhances your Benelli setup from the first light to the last shot.