The Lancer Systems Shotgun Extension Tube is a magazine extension designed for Mossberg 590 shotguns to increase onboard ammunition capacity. It pairs machined aluminum components with a lightweight carbon-fiber tube to provide a durable, low‑weight upgrade. An extra-long spring is included and can be cut to optimize loading; extension clamps are recommended for tubes that extend beyond the barrel.
Key Specifications
- The extension increases magazine capacity by 8 rounds.
- Designed for attachment to Mossberg 590 magazine tubes.
- Constructed with carbon-fiber and aluminum components.
- Features machined aluminum components combined with a lightweight carbon-fiber tube.
- Includes an extra-long spring that can be cut to optimize loading.
- Creates a lightweight, durable magazine extension for added on-gun rounds.
- Extension clamps recommended for tubes that extend past the barrel.
- Product type listed as a shotgun magazine extension.
This extension offers a practical capacity increase and weight-conscious construction for shooters who require additional on-gun rounds in range use, competition, or working setups. The included spring and rugged componentry let users tailor loading characteristics while maintaining a focus on reliability and reduced weight.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




