# Citadel Mariner 20 Gauge 18.50in Nickel Walnut

**Brand:** Citadel
**Category:** Pump-Action Shotguns
**Caliber:** 20 Gauge

## Specifications

- **Caliber:** 20 Gauge
- **Barrel Length:** 18.5"
- **UPC:** 682146898972
- **SKU:** UCC0aoryG

## Description

The Citadel Mariner is a pump-action shotgun chambered in 20 Gauge with a 3-inch chamber. It has an 18.50-inch nickel-finished barrel fitted with a heat shield, a nickel-finished aluminum receiver, and a Picatinny rail. This variant ships with a black fixed walnut stock in place of synthetic, and capacity is 4+1 rounds.

### Key Specifications
- **Brand**: Citadel
- **Model**: Mariner
- **Caliber**: 20 Gauge
- **Action**: Pump Action
- **Capacity**: 4+1
- **Barrel Length**: 18.50 in
- **Color/Finish**: Nickel

### Detailed Features
- 18.50-inch nickel-finished barrel with heat shield
- Nickel-finished aluminum receiver
- Picatinny rail for optic or accessory mounting
- Black fixed walnut stock
- 3-inch chamber

## Frequently Asked Questions

**Q: What gauge is the Citadel Mariner?**

A: The Citadel Mariner is chambered in 20 Gauge with a 3-inch chamber.

**Q: Who makes the Mariner shotgun?**

A: The Mariner is made by Citadel.

**Q: What type of firearm is the Citadel Mariner?**

A: It is a pump-action shotgun.

**Q: What is the barrel length of the Citadel Mariner?**

A: The Mariner has an 18.50-inch barrel with a nickel finish and heat shield.

**Q: How many rounds does the Citadel Mariner hold?**

A: Capacity is 4+1 rounds.

**Q: What stock does the Citadel Mariner Walnut variant have?**

A: This variant ships with a black fixed walnut stock.

**Q: Where can I buy the Citadel Mariner?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> It kills me to do a video like this because I've had such good experience with Citadel firearms uh that this one is my first lemon.
>
> — [Derek Jones](https://www.youtube.com/watch?v=JGKNg4mDjzc&t=0s)

> Citadel. Again, this is not a hit piece. I have a lot of Citadel firearms, but about every in the cold, it's about every three shots.
>
> — [Derek Jones](https://www.youtube.com/watch?v=JGKNg4mDjzc&t=122s)

> It's about every 10 shots I love this shotgun it's really good looking.
>
> — [Derek Jones](https://www.youtube.com/watch?v=JGKNg4mDjzc&t=132s)

## What Customers Say

*AI-generated insights from customer reviews*

Owners who pick the walnut-stock Mariner over the synthetic variant typically mention aesthetics as the deciding factor. The nickel and walnut combination is seen as a cleaner look at a budget price point, and several owners report it turns heads at the range.

The same corrosion-resistance praise that follows the synthetic model applies here. Nickel over the receiver and barrel inspires confidence in humid environments, though some owners note the walnut stock has no protective finish applied from the factory and benefits from a coat of oil.

Action smoothness improves after a few hundred rounds for most owners. The trigger is serviceable but not refined, which is consistent feedback across the Mariner line regardless of stock material.

## Pricing

**10 offers available**

| Vendor | Price |
|--------|-------|
| Shootingsurplus Com | $250.89 |
| Centerfiresystems Com | $253.99 |
| Globalordnance Com | $257.61 |
| Guns Com | $257.99 |
| Palmettostatearmory Com | $257.99 |
| Kygunco Com | $264.33 |
| Deguns | $271.99 |
| Selwayarmory Com | $272.49 |
| Impactguns Com | $273.79 |
| Buds Gun Shop | $277.99 |

## Similar Products

- [Citadel Mariner 20 Gauge 18.50in Nickel Synthetic](https://gunsnation.com/p/citadel-mariner-20-gauge-18-50in-nickel-synthetic/UCC0aoryX)
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- [Citadel Mariner 12G Pump Shotgun - 18.5" Nickel/Black Versatile Guardian](https://gunsnation.com/p/citadel-mariner-12g-pump-shotgun-18-5-nickel-black-versatile-guardian/UCC0aorhg)
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*Data from [GunsNation](https://gunsnation.com)*