Carlson’s 5″ Magazine Extension Assembly for Benelli M4 12 Gauge – 7-Round Capacity

Maximize the firepower of your Benelli M4 with the Carlson’s Magazine Extension Assembly, purpose-built for 12 gauge tactical, home defense, and law enforcement applications. This 5-inch extension adds meaningful capacity, bringing your total to 7 rounds and keeping you ready when it counts most.

Constructed from blued solid steel, this extension is built to withstand the demands of hard use without compromise. The threaded tube replaces your existing magazine cap for a secure, rattle-free fit with no permanent modifications required. Installation is straightforward thanks to the included easy-to-follow instructions, making this an accessible upgrade for any skill level.

The assembly includes a spring base clamp with swivel stud, compatible with quick-detach (QD) sling swivels (sold separately), so you can configure your M4 for optimal handling and carry. A high-visibility follower is also included to give you a clear visual indicator of feed status at a glance.

Key Features:
• Fits: Benelli M4 12 Gauge
• Extension Length: 5 inches
• Total Capacity: 7 rounds
• Material: Blued solid steel construction
• Includes spring base clamp with swivel stud (QD swivel not included)
• Includes high-visibility follower
• Replaces factory magazine cap – no permanent modification required
• Ideal for home defense, tactical use, and competition shooting

Order online today from VanTon Arms and take advantage of our competitive pricing and fast nationwide shipping. In stock and ready to ship.