This Lancer Systems extension tube (mfr. part no. LSX3XB) attaches to the existing magazine tube on a Benelli M1, M2, SBE, or SBE2 shotgun to add 3 rounds of 12-gauge capacity.

Key Specifications

• Adds 3 rounds to your shotgun’s magazine capacity.
• Fits the Benelli M1, M2, SBE, and SBE2, 12 gauge.
• Combines machined aluminum components with a lightweight carbon-fiber tube.
• Includes an extra-long spring that can be cut to optimize loading.
• An extension clamp is recommended for tubes extending beyond the barrel.
• Overall length of approximately 9.4 inches.
• Manufactured by Lancer Systems.

Frequently Asked Questions

Is this a standalone magazine?

No, it’s an extension tube that threads onto your Benelli’s existing magazine tube to add 3 rounds of capacity.

Do I need anything else to install it?

An extension clamp is recommended if the tube extends beyond the barrel; the kit includes a cuttable spring.

Buy the Lancer Benelli Plus-3 Extension Tube

Shop the Lancer Systems lineup or browse our full Shotgun Parts selection to find the right fit for your firearm.