Remington 870 8 Shot Extension Tube (8 shot total capacity)

This extension allows you to increase the ammunition capacity of the shotgun to 8 rounds. The extension is made of tough 6061 aluminum. This allows the tube to have a large wall thickness to improve rigidity without compromising overall weight. The tube screws down on the magazine and locks the fore end in place. The extension is supplied with a follower and spring.

Total length measures 11 3/8 inches

For 12 gauge only. Camo option available upon request for an additional $75 and 4-6 week delivery time.

Although we keep a small inventory of polished units, it may take as long as 3-4 weeks for delivery of any polished mag extension.

Looking for a custom magazine extension? Please let us know HERE.

Custom shortening of a magazine tube to a specific length is an additional $35.

Please note: magazine extension tubes are a regulated commodity by the U.S. Department of Commerce, and are not exportable to all countries. Briley Mfg will notify you should this regulation affect your order.