Lightweight aluminum and carbon-fiber extension adds three rounds to your Mossberg 590's magazine capacity. Includes extra-long spring for custom tuning. 9.2 inches long.
Fits: Mossberg 590
The Lancer Shotgun Extension Tube is a straightforward solution for shooters who want more ammunition on tap without changing their firearm. Designed specifically for the Mossberg 590, this extension bolts directly to your existing magazine tube to add three additional rounds of capacity.
Lancer combines machined aluminum components with a lightweight carbon-fiber tube to create an extension that won't bog down your shotgun. The result is a durable upgrade that maintains the handling characteristics of your firearm while giving you the extra firepower when you need it.
Whether you're running competition courses, hunting, or training, this extension tube gives you more rounds between reloads. The included spring is longer than standard, allowing you to optimize it for your particular loading technique and ammunition preferences.