Description
There's something about a wood-stocked pump gun in a duck blind that just feels right, and the Rock Island Armory Magnum Pump Waterfowl leans into that tradition without skimping where it counts. The 3.5-inch chamber is the headline here. It lets you run everything from light 2.75-inch target loads for offseason clays all the way up to heavy 3.5-inch magnum steel and bismuth payloads when the birds are working the decoys at the edge of your range. Plenty of pump guns stop at 3 inches. This one doesn't.
Why the PA12 Waterfowl Earns Its Spot in the Blind
The 28-inch smooth bore barrel wears a ventilated rib and a bead front sight, giving you that long, smooth swing waterfowlers want when tracking crossing birds. Rock Island includes three choke tubes, Full, Modified, and Improved Cylinder, which covers the practical spread from pass shooting to close work over decoys. Capacity is 4+1, and the whole package rides on a black anodized aluminum receiver that trims weight to a manageable 7.7 pounds. That matters when you're humping gear through flooded timber before sunrise.
Classic Walnut Looks, Workhorse Attitude
The fixed walnut stock and matching forend give this gun a look that synthetic-stocked competitors can't touch, and the dark anodized metalwork keeps the glare down when birds are circling overhead. At 48.2 inches overall, it balances well and points naturally, which is really what you're paying for in a field gun.
A Magnum Pump That Won't Complicate Things
Pump actions have stayed popular with waterfowl hunters for a simple reason: they cycle whatever you feed them, in whatever weather you hunt in. Cold, wet, muddy mornings don't faze a well-built slide action. Add in Rock Island Armory's limited lifetime warranty and you've got a straightforward, hard-working 3.5-inch magnum that's ready for opening day and every season after it.
Key Specifications
- Manufacturer: Armscor/Rock Island Armory
- Manufacturer Part Number: PA12MNL28
- UPC: 812285028873
- Gauge: 12 Gauge
- Chamber: 3.5 in
- Action: Pump Action
- Barrel Length: 28 in
- Barrel Type: Smooth Bore with Vent Rib
- Capacity: 4+1
- Sights: Bead Front
- Stock: Fixed Walnut Wood
- Receiver: Black Anodized Aluminum
- Chokes Included: Full, Modified, Improved Cylinder
- Overall Length: 48.2 in
- Weight: 7.7 lbs
- Shipping Weight: 9.7 lbs
What’s Included
- Rock Island Armory PA12 Magnum Pump Waterfowl shotgun
- Full choke tube
- Modified choke tube
- Improved Cylinder choke tube
Frequently Asked Questions
Can the Rock Island Magnum Pump Waterfowl shoot 2.75" and 3" shells too?
Yes. The 3.5-inch chamber handles 2.75-inch, 3-inch, and 3.5-inch 12 gauge shells, so you can run light target loads at the clays range and step up to heavy magnum steel loads for ducks and geese with the same gun.
What choke tubes come with the PA12 Waterfowl?
It ships with three choke tubes: Full, Modified, and Improved Cylinder. That set covers most waterfowl situations, from tight patterns on pass shooting to more open spreads for birds decoying in close.
How heavy is this shotgun for carrying in the field?
It weighs in at 7.7 pounds, which is reasonable for a 3.5-inch magnum pump gun. The aluminum receiver keeps weight down compared to all-steel designs, and that heft also helps soak up recoil when you're shooting heavy magnum loads.
Does Rock Island Armory back this shotgun with a warranty?
Yes. Rock Island Armory offers a limited lifetime warranty on its firearms for their intended use. Registering the firearm with the manufacturer after purchase activates the coverage.




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