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Benelli M3 Super 90

Benelli · Shotgun

Benelli M3 Super 90

Inertia operated · 12 Gauge · introduced 1989

Also known as M3 Super 90, M3A1, M3T

About the Benelli M3 Super 90

The Benelli M3 Super 90 is a unique dual-mode combat shotgun designed and manufactured by Italian firearms maker Benelli Armi SpA. Introduced in 1989, the M3 is the third model in the legendary Super 90 line and stands out for its ability to operate in both semi-automatic and pump-action modes. This convertible design allows users to rapidly switch between firing modes by simply manipulating a fore-end-mounted locking ring - no tools required. In semi-automatic mode, the M3 uses Benelli's proprietary inertia-driven system with a rotating bolt head, which cycles reliably with standard-power ammunition while absorbing recoil. When pump-action mode is engaged, the weapon can fire lower-powered specialty rounds such as less-lethal ammunition that lack sufficient recoil energy to cycle the semi-automatic action. The M3A1 variant was selected by the Australian Defence Force under LAND 159 Tranche 1 to replace the Remington 870 as their new standard combat shotgun, featuring a red dot sight and white light illuminator. Chambered in 12 gauge with a 3-inch chamber, the M3 features a chrome-lined steel barrel, anodized aluminum receiver, ghost ring sights, and tubular magazine holding 5-7 rounds depending on the variant and jurisdiction. The weapon's versatility, reliability, and dual-mode operation have made it a popular choice among military special forces and law enforcement units worldwide.

The Benelli M3's unique dual-mode operation lets users switch between semi-automatic and pump-action with a simple twist of a fore-end ring, making it one of the most versatile combat shotguns ever created. The pump mode allows firing low-powered specialty rounds like bean-bag rounds that lack the recoil energy to cycle the semi-auto action.

Benelli M3 Super 90 specifications

General

Type
Shotgun
Action
Inertia operated
Firing mechanism
Hammer-fired
Trigger
Single stage
Trigger pull
2.7 kg (5.8 lb)
Calibres
12 Gauge
Magazine capacity
7 rounds
Magazine
Tubular

Dimensions

Barrel length
502 mm (19.8 in)
Overall length
1041 mm (41.0 in)
Weight (empty)
3.26 kg (7.19 lb)

Barrel

Rifling
Smoothbore
Grooves
6

Materials

Barrel
Steel
Receiver / frame
Aluminum
Stock
Polymer
Finish
anodized

Performance

Effective range
40 m

History

Introduced
1989
Production status
In production
Country of origin
IT
Designer
Bruno Civolani

Features

  • Dual mode operation
  • Convertible pump semi auto
  • Rotating bolt
  • Ghost ring sights
  • Inertia driven system
  • Chrome lined barrel
  • Telescopic stock option
  • Pistol grip option
  • Sling mounts

Safety

  • Crossbolt safety
  • Half cock notch

The M3's dual-mode capability is its defining feature, making it one of the most versatile combat shotguns ever produced. The inertia-driven system uses fewer moving parts than gas-operated designs, resulting in a lighter, more reliable weapon that requires less maintenance. Military and law enforcement variants (M3A1, M3T) typically feature 7-round capacity, while civilian models are restricted to 5 rounds. The weapon can accept various stock configurations including fixed synthetic, telescopic, pistol grip, and folding stocks. Some users report the M3 works better in pump-action mode with lighter target loads, while full-power buckshot and slugs cycle reliably in semi-automatic mode. The smoothbore barrel limits slug accuracy compared to rifled shotguns but is adequate for typical combat shotgun engagement distances of 25-50 meters.

Benelli M3 Super 90 variants

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