Description
There is something about a nickel shotgun with walnut furniture that just works. The Citadel Mariner from Legacy Sports International leans into that classic look while packing in features you would expect on guns costing quite a bit more. The nickel finish is not just for show either. It shrugs off moisture and humidity, which is exactly why marine-style shotguns earned the name in the first place. If it is going to live in a boat, a truck, or a closet near the coast, that finish pulls its weight.
What the Mariner Brings to the Table
The 18.5 inch barrel keeps the whole package handy at 39 inches overall, and the 3 inch chamber handles everything from light target loads to heavy buckshot and magnum turkey shells. Capacity is 4+1, and a side-mounted shell holder on the receiver keeps extra rounds within easy reach when you need to top off in a hurry. Up top, an adjustable rear sight sits on a Picatinny rail, so you can dial in the factory sights or drop a red dot right on without any extra hardware. A blade front sight rounds out the setup, and the full-length barrel heat shield adds function along with that unmistakable tactical profile.
Choke Tubes Make It More Than a Defense Gun
Here is where the Mariner separates itself from a lot of short-barreled pump guns: it ships with three choke tubes. That means this is not locked into one role. Screw in a tighter choke and you have a compact truck gun that can pull double duty on small game or pests. Open it up and it patterns defensive loads the way an 18.5 inch barrel should. Foster-style slugs run fine through it too with an open choke.
A Working Pump Gun with Good Looks
At 6.9 pounds the Mariner carries easily, and the walnut stock and forend give it warmth and character that black synthetic just cannot match. Owners consistently point to the smooth pump stroke, clean trigger break, and solid overall feel. It is a working shotgun that happens to look sharp doing it.
Key Specifications
- Model: Mariner
- Manufacturer: Legacy Sports International (Citadel)
- MPN: FRMN1220NKL
- UPC: 682146897203
- Gauge: 12 Gauge
- Action: Pump Action
- Chamber: 3"
- Barrel Length: 18.5"
- Overall Length: 39"
- Capacity: 4+1
- Weight: 6.9 lbs
- Finish: Nickel
- Stock: Fixed Walnut Wood
- Sights: Blade Front, Adjustable Rear with Picatinny Rail
- Barrel Features: Full-Length Heat Shield, Interchangeable Chokes
What’s Included
- Citadel Mariner 12 Gauge Pump Shotgun
- 3 Choke Tubes
- Side-Mount Shell Holder
Frequently Asked Questions
Can the Citadel Mariner shoot slugs?
Yes, rifled Foster-style slugs run just fine through the Mariner. For best results, use the most open choke tube, with improved cylinder typically giving the best slug accuracy. Avoid running slugs through a tight full choke.
Does the Mariner come with choke tubes?
It does, and that is one of its biggest selling points. Three choke tubes are included, which lets you tighten or open your patterns depending on the job. That flexibility makes this more versatile than most fixed-choke defense shotguns in its class.
Can I mount a red dot on the Citadel Mariner?
Yes, the Mariner comes with a Picatinny rail on the receiver, so most red dots and optics with a Picatinny mount bolt right on. The adjustable rear sight and blade front sight work well on their own if you would rather keep it simple.
Will the nickel finish hold up to moisture?
That is exactly what it is there for. The nickel finish resists rust and corrosion better than a standard blued barrel, which is why marine-style shotguns are a popular choice for boats, coastal homes, and humid climates. Basic cleaning and a light coat of oil will keep it looking sharp for years.




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