Description
The Spandau S2 12 Gauge 28in Realtree APX (model 21000189) is Spandau’s inertia-driven semi-auto with a 28 inch vent rib barrel and Realtree APX camo on the stock and forend. It chambers 3 inch shells, holds 3+1 and uses Benelli Mobil pattern chokes. Spandau Arms builds it in Turkey for SDS Arms.

Spandau S2 12 Gauge 28in Realtree APX Overview
Lipsey’s lists this model at 6.7 pounds. Its spec sheet also lists the receiver as Mossy Oak Bottomland and the overall length as 48.75 inches, which look like copy errors from sibling models, so trust the photos and confirm details with us if they matter. Realtree APX is a lighter, grassier pattern than Bottomland, which suits open fields, marsh edges and dove fields.
Open-Country Camo
APX mixes light stems, leaves and open space, so it blends into cut grain, cattails and early-season cover where darker timber patterns look like a dark blob. It is a good pick for dove openers, early teal and field goose hunts.

Long Barrel Swing
The 28 inch barrel gives this S2 a smooth, forward-weighted swing for passing birds. That helps on long crossing shots, but it is a little slower in a cramped blind. Keep your head on the stock and finish the swing; a long barrel rewards follow-through.
Waterfowl Loads and Chokes
For ducks and geese, use steel or another approved non-toxic shot, and choose a choke rated for steel in the Benelli Mobil thread pattern. Long-range waterfowl tubes help with geese, while improved cylinder or modified suits most ducks over decoys. Pattern your gun with the exact load you plan to hunt.

Inertia Reliability
Inertia guns run clean and light, but they need full-power loads and a firm mount. Clean and dry the bolt after wet days, use minimal oil in cold weather, and test any light target loads before relying on them.
Value Notes
Turkish inertia guns deliver a lot for the price, though resale value and gunsmith familiarity lag behind Benelli. Keep the box, shims and paperwork with the gun.
Fit and Shims
The S2 ships with stock shims that change drop and cast. Spend a few minutes at a patterning board after adjusting them: if the center of the pattern sits high or low, the stock fit is wrong, not the barrel. A good fit makes a long 28 inch gun feel quick.
State Laws and Ownership
Semi-automatic shotguns are legal in most states. Federal migratory bird rules require a plug limiting the gun to three shells for ducks, geese and doves, and many states set their own capacity, shot-type and hunting-hours rules. Check your state regulations, and ask your receiving FFL to confirm the transfer before ordering.
Specifications
- Brand: Spandau (SDS Arms)
- Model: S2, part number 21000189
- UPC: 810162050276
- Gauge: 12 gauge, 3 inch chamber
- Action: inertia-operated semi-automatic
- Barrel: 28 inches, vent rib
- Capacity: 3+1
- Choke system: Benelli Mobil pattern
- Sights: fiber optic front bead
- Stock and forend: Realtree APX synthetic
- Weight: 6.7 lb (Lipsey’s)
- Safety: two-position push button
Before You Buy
Federal law requires that this shotgun ship to a licensed FFL dealer, where you will complete ATF Form 4473 and a background check. You must be 18 or older to buy a rifle or shotgun from a dealer. Some states and cities add their own permits, waiting periods or hunting equipment rules, so confirm with your receiving FFL that it can be transferred to you before you order.
Who It Is For
The Spandau S2 12 Gauge 28in Realtree APX is a great fit for dove and early-season waterfowl hunters, field goose hunters, and anyone who wants a light camo 12 gauge with a long sighting plane.
Buy the Spandau S2 12 Gauge 28in Realtree APX at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Spandau S2 12 Gauge 28in Realtree APX online and ship it to your local FFL dealer, or browse our full selection of firearms for more shotguns. For factory details, visit SDS Arms.







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