Briley Shotgun Magazine Extension 12 Gauge (1100,1187,870) - MA, NJ Compliant

This extension allows you to increase the ammunition capacity of the shotgun. 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.

Fits:
Remington 1100, 1187, and 870 shotguns only.

Overall Length:
+2 shots - 7.000"
+4 shots - 11.375"
+6 shots - 13.500"

Outer Diameter 1.2"