Benelli M3 Convertible Shotgun

Benelli M3 Convertible 12GA Semi-Auto/Pump Shotgun with Telescoping Stock | 11608

The Benelli M3 Convertible 11608 is a uniquely versatile 12-gauge tactical shotgun that gives the user two operating modes in one platform: semi-automatic operation for conventional loads and manual pump-action operation when lower-energy specialty ammunition may not reliably cycle a semi-auto action. That dual-mode design is what separates the M3 from both the Benelli M2 and M4 families.

This configuration features a 19.75-inch barrel, 7+1 capacity, telescoping pistol-grip stock, ghost-ring sights, fixed Cylinder choke, and a receiver-mounted Picatinny rail. In semi-auto mode, the M3 uses Benelli's Inertia Driven system. When needed, it can be converted to pump operation without changing shotguns. :contentReference[oaicite:0]{index=0}

IMPORTANT: The Benelli M3 11608 is a Law Enforcement model. Sale, transfer, possession, or use may be restricted to qualified law enforcement agencies, departments, or authorized personnel. All applicable federal, state, and local requirements must be satisfied.

Convertible Semi-Auto & Pump Operation

The defining feature of the M3 is its ability to operate as either a semi-automatic or pump-action shotgun. With conventional ammunition, the M3 can run as an Inertia Driven semi-auto for fast cycling and familiar Benelli operation.

When lower-energy specialty loads are used, the shotgun can be switched to manual pump operation. That gives professional users the flexibility to work with ammunition that may not generate enough recoil energy to cycle a conventional semi-automatic action. Benelli specifically positions the M3 around this ability to move between semi-auto and pump operation depending on the intended use. :contentReference[oaicite:1]{index=1}

Benelli Inertia Driven System

In semi-automatic mode, the M3 uses Benelli's Inertia Driven operating system. Rather than routing propellant gases back through the action, the system uses recoil energy to cycle the shotgun.

The result is a relatively simple operating system with fewer gas-system components to foul during use. For buyers familiar with the Benelli M2, the semi-auto side of the M3 retains that recognizable Inertia Driven character while adding the option of manual pump operation. :contentReference[oaicite:2]{index=2}

Rotating Bolt Head

The M3 uses a three-lug rotating bolt head that locks into the steel barrel extension. This provides the secure lockup required for the shotgun's semi-automatic and pump-operated modes while keeping the locking system centered around the barrel extension.

19.75" Tactical Barrel

The 11608 is equipped with a 19.75-inch barrel and is chambered for 2¾-inch and 3-inch 12-gauge ammunition. The barrel uses a fixed Cylinder choke, keeping the muzzle configuration simple and consistent with the shotgun's tactical role. :contentReference[oaicite:3]{index=3}

7+1 Magazine Capacity

This M3 configuration carries a listed 7+1 capacity, giving it substantially more onboard capacity than a typical field shotgun while maintaining the balance of a full-size tactical platform. :contentReference[oaicite:4]{index=4}

Telescoping Pistol-Grip Stock

The 11608 is equipped with a telescoping stock and pistol grip. This gives the shooter more flexibility in stock length and overall handling than a fixed-stock configuration.

For professional users working around armor, equipment, or different shooting positions, the adjustable stock is one of the most useful features of this specific M3 variant. :contentReference[oaicite:5]{index=5}

Ghost-Ring Sights & Picatinny Rail

The M3 comes equipped with ghost-ring sights for a clear, defined mechanical sight picture. A receiver-mounted Picatinny rail provides a factory attachment point for a compatible red-dot sight or other optic. :contentReference[oaicite:6]{index=6}

That combination gives the shotgun useful sighting flexibility without requiring the buyer to replace the factory sight system or add a separate receiver mount.

Ergonomic Trigger Guard & Safety

Benelli designed the trigger guard and safety controls around straightforward access and operation. The trigger assembly can also be removed as a complete unit by driving out a single retaining pin, simplifying routine service and maintenance. :contentReference[oaicite:7]{index=7}

Why Choose the M3?

The M3 fills a very specific role in Benelli's tactical lineup. The M2 is an Inertia Driven semi-auto, while the M4 is a dedicated gas-operated semi-auto. The M3 gives the buyer something different: the ability to retain semi-automatic operation for normal ammunition while still having manual pump operation available when the ammunition or application calls for it.

For agencies or qualified professional users who may need to work with a wider range of 12-gauge ammunition, that convertible operating system is the main reason to choose the M3 over a conventional semi-auto.

Key Features

• Manufacturer: Benelli
• Model: M3 Tactical Convertible
• Manufacturer Part Number: 11608
• UPC: 650350116083
• Gauge: 12 Gauge
• Action: Convertible Semi-Automatic / Pump Action
• Semi-Auto Operating System: Benelli Inertia Driven System
• Barrel Length: 19.75"
• Chamber: 2¾" and 3"
• Magazine Capacity: 7+1
• Stock: Telescoping Pistol-Grip Stock
• Stock Finish: Black Synthetic
• Sights: Ghost Ring
• Optics Mount: Receiver-Mounted Picatinny Rail
• Choke: Fixed Cylinder
• Handedness: Right Hand
• Length of Pull: 14-3/8"
• Drop at Comb: 1-3/8"
• Drop at Heel: 2"
• Overall Length: 41"
• Average Weight: 7.7 lbs.

The Benelli M3 Convertible 11608 is built for buyers who specifically need more flexibility than a conventional tactical semi-auto can offer. Its switchable semi-auto and pump operation, 19.75-inch barrel, 7+1 capacity, telescoping stock, ghost-ring sights, Picatinny rail, and Inertia Driven system make it one of the most specialized shotguns in Benelli's professional lineup. :contentReference[oaicite:8]{index=8}

WARNING This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. You must be 18 or older to shop or purchase on our website, and 21 or older to purchase ammunition or firearms. Check local laws before ordering. By ordering, you certify that you meet all federal, state, and local legal requirements. There are no returns or exchanges on armor, firearms, ammunition, or PPE. Ammunition ships UPS Ground to the lower 48 states.
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