Description
The Spandau S2 20 Gauge Semi-Auto Shotgun, 28in is a full-size field gun that brings reliable inertia operation to a lightweight, easy-handling package. Designed for upland hunting, clay targets, and general outdoor shooting, it cycles consistently with loads from target light to heavy magnums. The 28-inch vent-rib barrel and Benelli/Mobil-style choke system let you tune patterns for any game or sport. Per manufacturer specs, the receiver is drilled and tapped for optics, and the included stock drop/cast spacer kit lets you adjust fit for smaller or younger shooters.
| Manufacturer | Spandau |
|---|---|
| Model | S2 |
| Material | Steel receiver, synthetic stock |
| Compatibility | Benelli/Mobil-style choke tubes; 2 3/4 and 3-inch 20 gauge shells |
| Finish | Matte black |
| Weight | Approx. 6.2 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Inertia Operating System – Why it matters: No gas ports to clean or foul, so the action stays reliable season after season, even with light target loads that tend to short-stroke gas guns.
- 28-inch Vent Rib Barrel – Why it matters: That extra sight plane helps new shooters keep their head down and follow through, making it easier to hit moving clays or flushing birds.
- Benelli/Mobil Choke Compatibility – Why it matters: You can swap chokes instantly to tighten patterns for turkeys or open them for close-cover pheasants, without buying a whole new barrel.
- Drilled and Tapped Receiver – Why it matters: Mount a red dot or low-power scope for slug hunting or for shooters who need a little extra help seeing the target clearly.
- Stock Drop/Cast Spacer Kit Included – Why it matters: Adjust the stock to fit different face shapes and arm lengths — perfect for passing the shotgun down as kids grow.
Who It’s For
This shotgun is built for families who hunt together, for youth shooters stepping up from a .410, and for anyone wanting a light-recoiling 20 gauge they can carry all day. If you’re a beginner looking for a semi-auto that won’t beat you up and lets you focus on form, the S2 fits the bill. It’s also a solid choice for the budget-minded shooter who still wants a gun that patterns well and runs without fuss.
Pros and Cons
- Pro: Inertia action digests a wide range of loads — from 7/8 oz target shells to 3-inch magnums — without adjustment.
- Pro: Light enough at 6.2 lbs for smaller-framed shooters to swing comfortably.
- Pro: Spacer kit means you can custom-fit the stock without a gunsmith.
- Con: The synthetic stock has a basic, no-frills finish — not as refined as wood-stocked models from higher-end brands.
- Con: The inertia system can be sensitive to limp-wristing; proper shoulder mount is key for reliable cycling.
Comparison
| Feature | Spandau S2 20 Gauge | Stoeger M3020 | Mossberg SA-20 |
|---|---|---|---|
| Action | Inertia semi-auto | Inertia semi-auto | Gas-operated semi-auto |
| Weight | 6.2 lbs | 5.9 lbs | 6.5 lbs |
| Choke System | Benelli/Mobil (5 chokes incl.) | Mobil (3 chokes incl.) | Accu-Set (3 chokes incl.) |
| Stock Adjustability | Drop/cast spacer kit included | Fixed comb, shim kit extra | Fixed comb, no spacers |
| Price | $574.17 | ~$529 | ~$499 |
| Best For | Families, youth, field use | Ultralight carry, waterfowl | Low-recoil beginners, clays |
FAQ
What shell lengths does the Spandau S2 20 Gauge Semi-Auto Shotgun, 28in accept?
It accepts both 2 3/4-inch and 3-inch 20 gauge shells. The inertia system cycles reliably with target loads as light as 7/8 oz, as well as heavy magnum hunting loads.
Can I mount a red dot or scope on this shotgun?
Yes. The receiver is drilled and tapped to accept standard optics mounts or rails. Many shooters use a low-profile red dot for slug hunting or clay games.
Are extra choke tubes included?
Yes. The shotgun ships with a full choke tube kit (usually Cylinder, Improved Cylinder, Modified, Improved Modified, and Full), plus a choke wrench and owner’s manual.
Is this shotgun suitable for youth or smaller shooters?
Absolutely. The 20 gauge has mild recoil, and the included stock drop/cast spacer kit lets you adjust length of pull and comb height for a proper fit. At 6.2 lbs, it’s easy to carry and swing.
How does the inertia system differ from a gas system?
An inertia system uses recoil energy to cycle the action, with fewer moving parts and no gas ports to clean. It’s more reliable in dirty conditions but requires a solid shoulder mount. Gas systems soak up more recoil but need more maintenance.
✔️ Nationwide delivery (all 50 states)
✔️ Ships 1-2 business days
✔️ 30-day returns
✔️ Secure checkout
Browse more Semi Auto Shotguns or check out our 20 Gauge Shotguns and Youth Shotguns.
Last updated: April 2026
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