Remington 1187 10 Shot Shotgun Magazine Extension (10 shot total capacity)

Due to extremely high demand extension tube orders will take 4-6 weeks to complete and ship.

This extension allows you to increase the ammunition capacity of the shotgun to 10 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 magazine tube spring.

Total length measures 13 1/2 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.