Briley WINCHESTER SUPER X3 MAGAZINE EXTENSION TUBE, 3 RDS TSPA-411

Precision-machined aluminum extension tubes increase the magazine capacity of your 12-gauge Benelli, Beretta, or Winchester shotgun. Each tube has an extra-thick wall for added rigidity and strength. Ideal for shooting competitions, law enforcement, and home defense. Screws onto the factory magazine threads for fast installation in minutes. Knurled grasping surfaces aid installation and removal for cleaning.