Benelli M3 Tactical 12 Gauge Convertible Semi-Auto/Pump, 18.5 in Barrel, 6+1, 3 in Chamber, Italy — B-Square Rail Installed
The Benelli M3 Tactical is notable for its selectable dual-mode operation, allowing quick transition between inertia-driven semi-automatic and manual pump action. This example features an 18.5 in barrel, a 6+1 tubular magazine, and Italian proof marks. A B-Square receiver-mounted rail has been installed, adding a practical upgrade to the receiver without altering the M3's proven configuration.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: Surface scratches and scattered blemishes are present across the shotgun. The stock and pistol grip show heavy cosmetic wear. Light pitting is visible on the exterior finish of the barrel.
What’s Included
- Benelli M3 Tactical 12 Gauge shotgun
- B-Square receiver-mounted rail (installed)
The M3's convertible system uses a knurled selector ring ahead of the fore-end to switch between inertia-driven semi-auto and manual pump modes. The bolt is marked "Benelli Armi System," underscoring the design lineage of Benelli's reliable operation.
The 18.5 in barrel pairs with a 6+1 tubular magazine and a 3 in chamber, offering a compact tactical profile. The magazine tube terminates short of the muzzle, maintaining the classic M3 Tactical silhouette.
Construction is centered on a matte black aluminum alloy receiver with a fixed polymer stock and pistol grip, plus a ribbed polymer fore-end for positive purchase. A Benelli-logo rubber buttpad and a 14.0 in length of pull complete the handling package. A cross-bolt safety provides straightforward control.
Sighting provisions include a protected front post. The installed B-Square receiver-mounted rail adds mounting real estate on top of the receiver. Italian PSF proof marks are present, reflecting its Italian manufacture and factory proofing.




