GFA GF-1 SA 12/20B 4RD

The GFA GF-1 SA 12/20B is a versatile semi-auto shotgun built for hunters and sport shooters in San Jose and across California. With interchangeable barrel lengths and a 4+1 capacity, it adapts to different shooting scenarios. Before purchasing any firearm in California, review California firearm laws to understand your obligations.

Dual-barrel versatility and fixed-sight operation

This semi-auto shotgun ships with two barrels—20 inches and 18.5 inches—letting you match your setup to hunting conditions or range work without buying a second gun. The fixed front bead sight keeps your sight picture simple and reliable. Three choke tubes (Cylinder, Full, Modified) come standard, giving you flexibility for different shot patterns. Understanding California's firearm regulations, including exemptions like those in PC §32100 exempt revolvers, helps you stay informed about what applies to your firearms. Visit our gun shop in Sunnyvale for our full catalog.

Frequently asked questions

Can I swap barrels on the GFA GF-1 without tools?

The GFA GF-1 allows barrel changes, though the process depends on the specific locking mechanism. Check the manual for your model to confirm whether you need tools or can do it by hand.

What's the practical difference between the 20-inch and 18.5-inch barrel?

The 20-inch barrel gives slightly better sight radius and velocity for longer-range shooting. The 18.5-inch barrel is more maneuverable in tight spaces and faster to shoulder in close quarters.

What is an FFL transfer in California?

An FFL transfer is when a federally-licensed dealer like TacticCAL receives a firearm shipped from another seller and processes California's required DROS paperwork to legally transfer it to you. TacticCAL is your gun shop Daly City in the Bay Area.