CZ-USA Swamp Magnum O/U 12 Gauge 3.5″ 30″ Realtree Max-5
About this product
The CZ-USA Swamp Magnum O/U 12 Gauge 3.5″ 30″ Realtree Max-5 is a purpose-built waterfowl over/under shotgun featuring a full-camo finish and 3.5-inch chamber for maximum field effectiveness. This 8.1-pound scattergun comes with five extended choke tubes and is engineered specifically for harsh wetland environments where corrosion resistance and reliable patterning matter more than cosmetic polish. With a 30-inch vent-rib barrel and automatic top-tang safety, it represents CZ's answer to dedicated waterfowlers who need mechanical reliability in conditions that would degrade lesser firearms.
What is the Swamp Magnum used for?
This shotgun is engineered specifically for waterfowl hunting in marshes, flooded timber, and coastal environments where 3.5-inch shells and multiple choke options are tactical advantages. The full Realtree Max-5 camo covering both metal and polymer components eliminates glare and breaks up the silhouette against vegetation. The 30-inch barrel provides the swing dynamics needed for consistent lead on crossing ducks and geese at 40+ yards.
How does the Swamp Magnum compare to the Stevens 555 Sporting O/U?
The Swamp Magnum outperforms the Stevens 555 Sporting O/U in corrosion resistance and shell compatibility, accepting 3.5-inch magnums versus the Stevens' 3-inch limitation. While both have 30-inch barrels, the CZ's five extended choke tubes and full-camo finish justify the $400 price difference for serious waterfowlers. The Stevens remains the better choice for clay sports or upland hunting where weight and chamber length matter less.
What does it weigh and what are the dimensions?
The Swamp Magnum weighs 8.1 pounds with an overall length of 48 inches and 30-inch barrel length. The 14.5-inch length of pull fits most adult shooters without modification, while the 1.5-inch drop at comb provides consistent cheek weld for maintaining sight picture. The 2-round capacity is standard for over/unders but requires reloading after each pair of shots.
Who is this NOT for?
This shotgun is not suitable for tactical applications, home defense, or competitive clay shooting where faster cycling or higher capacity are required. The 8.1-pound weight makes it cumbersome for still-hunting turkeys or walking up pheasants all day. For those applications, consider the lighter Stevens 555 Sporting Compact in 20-gauge.
What's in the box?
The package includes the shotgun, five extended choke tubes (cylinder, improved cylinder, modified, improved modified, and full), and the standard owner's manual with choke tube patterning data. Notably absent are any aftermarket accessories like a hard case or cleaning kit—CZ assumes waterfowlers already have their preferred maintenance equipment.
Is the Swamp Magnum worth it at $1,073.99?
At this price point, the Swamp Magnum delivers exactly what dedicated waterfowlers need: corrosion-resistant camo finishes, 3.5-inch chamber versatility, and reliable mechanical operation in wet conditions. While you could spend $2,500+ for a Beretta or Browning with similar features, the CZ provides 85% of the performance at less than half the cost for hunters who prioritize function over prestige.
Specs at a glance
Video review
Pros & cons
What works
- Full camo finish on metal and polymer - eliminates glare in blinds and marshes
- Five extended choke tubes included - covers all waterfowl patterning needs out of the box
- 3.5-inch chamber compatibility - handles maximum payloads for geese and long-range ducks
- Automatic top-tang safety - engages reliably when action is opened
Trade-offs
- 8.1-pound weight - noticeable during long carries through dense cover
- Proprietary choke system - limits aftermarket tube options compared to industry standards
- Basic polymer stock - lacks the adjustability of higher-end competition models
Expert review
Key attributes
| upc | 806703065830 |
| manufacturer | CZ-USA |
| manufacturer part number | 06583 |
| action | Break Open |
| barrel length | 30" |
| caliber/gauge | 12 Gauge |
| capacity | 2 |
| chokes included | 5 Extended Black |
| color | CAMOFLAGE |
| length | 33.9500 |
| safety | Top Tang |
| sights | Bead Front |
Frequently asked questions
- Does this work with aftermarket choke tubes?
- The Swamp Magnum uses CZ's proprietary choke tube system, incompatible with Beretta/Benelli Mobilchokes or Browning Invector patterns. You'll need to purchase CZ-specific tubes, which retail for $25-35 each from major suppliers like MidwayUSA or Brownells.
- Can I use 2.75-inch target loads in this gun?
- Yes, the 3.5-inch chamber safely cycles all standard 12-gauge shells from 2.75-inch light target loads to 3.5-inch magnum waterfowl rounds. The automatic ejectors function properly with shorter shells, though extraction may be less forceful than with full-length magnums.
- How long does shipping take for firearms?
- Firearms ship within 3 business days to your selected FFL dealer after verification of identification and background check compliance. Transit time varies by carrier but typically adds 2-5 business days depending on your location relative to our Montana warehouse.
- Does the camo finish hold up to saltwater exposure?
- The Realtree Max-5 finish provides moderate corrosion resistance but requires immediate cleaning after saltwater use. I recommend a thorough freshwater rinse and application of a silicone cloth within 4 hours of exposure to prevent pitting on the barrel and receiver surfaces.