Lyman 1082236 Plus 2 Magazine Extension Fits Mossberg 590 Black Aluminum

The Lyman 1082236 Plus 2 magazine extension for Mossberg 590 shotguns is a straightforward upgrade if you need more ammunition capacity on your tactical or home-defense 590. This aluminum extension adds two rounds to your magazine tube, giving you extra firepower when it counts without requiring a different shotgun platform. It's built from aluminum for durability and corrosion resistance, and the black finish matches standard 590 aesthetics. If you run your 590 for 3-gun competition, training drills, or any high-round-count scenario, those two extra shells mean fewer reloads.

Installation is direct—Lyman engineered this extension to fit the Mossberg 590 platform specifically, so you know compatibility isn't a guessing game. The aluminum construction keeps weight down compared to steel alternatives, which matters when you're shouldering and cycling a shotgun all day. Black anodize resists corrosion and blends in with the rest of your setup.

Whether you're building out a 590 for home defense, running it at the range, or deploying it in the field, this extension is a no-frills way to expand your onboard ammunition without changing barrels or receivers. Simple, proven, and made for the 590 platform.

Key Features

• Adds two rounds to Mossberg 590 magazine capacity
• Black aluminum construction for lightweight durability
• Direct fit design for Mossberg 590 shotguns
• Corrosion-resistant anodized finish

Specifications

Frequently Asked Questions

Does this magazine extension fit my Mossberg 590?

Yes—the Lyman 1082236 is engineered specifically for the Mossberg 590 platform and installs directly onto the magazine tube.

How many extra rounds does it hold?

The extension adds two rounds to your magazine capacity.

What is it made from?

The extension is constructed from black anodized aluminum, which provides durability and corrosion resistance while keeping weight minimal.