Description
There is something about a 20 gauge autoloader with real wood furniture that just feels right in the field, and the Spandau S2 delivers that feel without the usual autoloader price tag. Built by Spandau Arms, a brand of SDS Arms, the S2 runs on an inertia operating system, the same style of action that made certain Italian shotguns famous. Fewer moving parts, less gas fouling in the action, and dependable cycling across a wide range of loads. The 3-inch chamber handles everything from light target loads to heavier hunting shells, and the 3+1 capacity keeps you legal for most bird work with the included plug setup.
A 20 Gauge Field Gun That Carries Easy
The 28-inch vent rib barrel gives you the smooth, deliberate swing you want on crossing birds, while the 20 gauge frame keeps overall weight down for long walks behind a dog or a full day in the blind. A red fiber optic front sight stands out against gray skies and dim timber, which matters most at first light when the birds are moving. The enlarged loading gate and oversized charging handle were designed with cold, gloved hands in mind, and they make a real difference when you are topping off the tube in a hurry.
Choke Options and Fit Adjustment Built In
The S2 uses the Benelli/Mobil choke pattern, so tubes are easy to find anywhere and the included choke kit lets you tune patterns from close flushes to longer passing shots right out of the box. The buttstock includes a drop and cast spacer kit so you can tweak the fit to your build, and a rubber recoil pad takes the edge off heavier loads. The receiver comes drilled and tapped if you ever want to add an optic, and the gun shares compatibility with Benelli M2 pattern accessories, which opens up plenty of aftermarket options. Backed by a 1-year warranty and a lifetime service plan, this is a working shotgun meant to be hunted hard, not babied.
Key Specifications
- Manufacturer: Spandau Arms (SDS Arms)
- Model: S2 Field
- MPN: 21000172
- UPC: 810162050269
- Gauge: 20 Gauge
- Chamber: 3 inch
- Action: Semi-Auto, Inertia Operating System
- Barrel Length: 28 in, Vent Rib
- Capacity: 3+1
- Stock: Fixed Wood with Rubber Recoil Pad
- Sights: Red Fiber Optic Front
- Receiver: Drilled and Tapped for Optics
- Choke System: Benelli/Mobil Pattern
- Chokes Included: Cylinder, Modified, Full, Extended Ported Modified
- Overall Length: 50.5 in
What’s Included
- Spandau S2 20 Gauge Semi-Auto Shotgun
- Choke tube kit with wrench
- Stock drop/cast spacer kit
- Magazine plug
- Owner's manual
Frequently Asked Questions
What choke tubes does the Spandau S2 20 gauge accept?
The S2 uses the Benelli/Mobil choke pattern, one of the most common thread patterns out there, so replacement and aftermarket tubes are easy to find. It ships with a choke kit and wrench, giving you pattern options from open cylinder work to tighter full choke shots right out of the box.
Is the Spandau S2 reliable with different shell types?
The inertia-driven action is designed to cycle a wide range of loads without adjustment, and field testing from multiple reviewers has shown it running cleanly through mixed hunting loads. The 3-inch chamber handles both 2.75-inch and 3-inch shells. Like most inertia guns, it runs best once broken in and prefers loads with a bit of authority over ultralight target shells.
Can I mount an optic on the Spandau S2?
Yes. The receiver comes drilled and tapped from the factory using an M4 x .70 screw pattern, so you can add a rail or mount if you want a red dot for turkey hunting. For wingshooting, the vent rib and red fiber optic front sight work great as-is.
What kind of hunting is this 28-inch S2 best suited for?
The 28-inch vent rib barrel and lighter 20 gauge frame make it a natural fit for upland birds, dove fields, and waterfowl over decoys. The longer barrel smooths out your swing on flying targets, and it handles clays just as well when you want practice in the offseason. It is a do-most-things field gun rather than a specialized turkey setup.





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