Carlson's 04518 +10 Magazine Extension Benelli 12GA Blued Steel

The Carlson's Choke Tubes 04518 Magazine Extension transforms Benelli semi-automatic shotguns into high-capacity platforms by adding 10 additional rounds to the standard magazine tube. This extension provides tactical and competitive shooters with extended firepower without requiring magazine changes during critical moments.

What Makes This Different

Unlike basic magazine extensions that may compromise reliability, the Carlson's 04518 features precision-machined threads and a robust spring system engineered specifically for Benelli's inertia-driven action. The blued steel construction matches factory finish while providing corrosion resistance superior to aluminum alternatives. Internal components maintain consistent feeding pressure across all 10 additional rounds, ensuring reliable cycling with both light target loads and heavy waterfowl ammunition.

Key Features

• Adds 10 rounds capacity to compatible Benelli 12-gauge shotguns
• Precision-machined blued steel construction with corrosion-resistant finish
• Compatible with Benelli M1, M2, Super Black Eagle I, II, and III models
• Internal spring system maintains consistent feeding pressure
• Factory-matched threading ensures secure attachment without thread locker
• Includes installation hardware and follower components
• No gunsmith required for installation on compatible models

Field testing demonstrates reliable function with ammunition ranging from 2¾-inch target loads to 3½-inch magnum shells. The extension maintains the shotgun's balance point while providing sustained firepower for competitive 3-gun matches, tactical applications, and extended waterfowl hunting sessions. The blued finish resists saltwater corrosion during waterfowl hunting and maintains appearance through thousands of loading cycles.

Technical Specs

• Gauge: 12-gauge
• Capacity: +10 rounds
• Material: Blued steel construction
• Compatibility: Benelli M1, M2, Super Black Eagle I, II, III
• Thread Pattern: Standard Benelli magazine tube threading
• Finish: Traditional blued steel
• Installation: User-installable with included hardware
• Manufacturer: Carlson's Choke Tubes

Professional shooters and hunters choose Carlson's extensions for their proven reliability and precision manufacturing standards. The 04518 model specifically addresses the needs of Benelli owners requiring maximum ammunition capacity without sacrificing the platform's renowned reliability.