The Panzer Arms M4 Pro AI shotgun (brand part no. PAM4NCSBBTMFSS) is a semi-automatic 12 gauge built on the Benelli M4 platform, finished in black over its 18.5-inch ported barrel and 4140 steel receiver. The porting reduces felt recoil and muzzle rise for faster follow-up shots, and the skeleton stock keeps the gun light and fast to shoulder. A full-length Picatinny rail sits ready for optics. Among semi-auto shotguns, this M4 Pro AI favors shooters who want a competition-influenced 12 gauge in a clean black finish.

Key Specifications

• The chambering is 12 gauge with a 3-inch chamber.
• The barrel measures 18.5 inches and is ported to reduce recoil and muzzle rise.
• The receiver is 4140 steel, finished in black, not aluminum.
• Holds 5+1 rounds from the extended tube magazine.
• The stock is a skeleton design for a light, fast-handling profile.
• Fitted with a Picatinny top rail for optics mounting.
• The action is semi-automatic, cycling a fresh shell into the chamber with every trigger pull.

Frequently Asked Questions

What does the ported barrel do? It vents gas to reduce felt recoil and keep the muzzle flatter for faster follow-up shots.

Is the receiver aluminum or steel? It’s 4140 steel finished in black, not aluminum.

Buy the Panzer Arms M4 Pro AI Shotgun

A ported, steel-built 12 gauge in a clean black finish is exactly what this M4 Pro AI delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.