The Panzer Arms FS1 Pro (brand part no. FS1-PROFSGRA) is a semi-automatic 12 gauge shotgun with a folding stock, finished in a black and gray synthetic combination for a rugged, low-maintenance exterior. This FS1 Pro pairs a 20-inch barrel with a mobile choke system for adjustable shot patterns, and a Glock-style fiber optic front sight for a fast, familiar sight picture. The crossbolt safety keeps operation simple, and the folding stock shortens overall length for storage or transport without tools. With a 4-round capacity and an M-LOK-compatible forend, it’s a practical, field-ready 12 gauge for home defense, hunting, or general-purpose shooting.

Key Specifications

• Chambered in 12 gauge, 3-inch for full-power shotshell versatility.
• Features a 20-inch barrel for a balanced, easy-to-swing profile.
• The barrel is finished in black for a durable, low-glare exterior.
• Holds 4-round capacity in the tube magazine.
• Ships with a mobile choke system for adjustable shot patterns.
• Built with a folding stock that shortens overall length for storage or transport.
• Equipped with a Glock-style fiber optic front sight for a fast sight picture.
• Uses a simple, familiar crossbolt safety.
• Runs a semi-automatic action with an M-LOK compatible forend.

Frequently Asked Questions

Does the stock fold? Yes, shortening overall length for storage or transport.

What finish does it have? A black and gray synthetic combination on the stock and receiver.

What’s the magazine capacity? 4 rounds in 12 gauge.

Buy the Panzer Arms FS1 Pro 12 Gauge Shotgun

The FS1 Pro’s folding stock and mobile choke system make it a versatile, field-ready 12 gauge for a wide range of shooters. Order it from our Lubbock, Texas gun shop through Panzer Arms‘s semi-auto shotguns lineup for fast, insured shipping to your FFL.