M4 2 Shot Magazine Extension Kit

Easy-to-install magazine extension increases your 12 gauge shotgun’s capacity to two additional 2¾” shells. Perfect for competitions, law enforcement, or home defense use.

Corrosion-resistant, stainless steel tube with machined aluminum mounting collar, high strength stainless steel spring, and anodized aluminum follower help ensure reliable feeding in the harshest salt water, march hunting, or tactical environment.
Install in minutes, no special tools required. Benelli M4 available in two round only.