Mossberg 590A1 Mariner

Published on June 1, 2026
Duration: 14:47

This review of the Mossberg 590A1 Mariner shotgun highlights its unique marine coat finish, designed for corrosion resistance. The video details its features, including the Magpul furniture, heavy barrel, metal safety, and ghost ring sights with a fiber optic front sight. Shooting impressions cover its performance with birdshot, slugs, and its suitability for defense and various environments.

Quick Summary

The Mossberg 590A1 Mariner shotgun features a corrosion-resistant 'Marine Coat' finish and Magpul furniture. It includes a heavy barrel, metal safety, and ghost ring sights with a fiber optic front sight, offering good accuracy with slugs at moderate ranges.

Chapters

  1. 00:00Introduction to Mossberg 590A1 Mariner
  2. 00:12First Shots: Watermelon and Trash Can
  3. 00:42Marine Coat Finish Explained
  4. 00:58Sponsorships: Davidson's Gallery of Guns & SDI
  5. 01:31Magpul Stock and Forend Features
  6. 01:56Sight System: Ghost Ring & Fiber Optic
  7. 02:11A1 Features: Heavy Barrel, Metal Safety/Trigger Guard
  8. 02:41Comparison to Standard 590A1 Models
  9. 03:24Slug Testing and Accuracy
  10. 04:18Shotgun as an Artillery Piece
  11. 04:58Birdshot and General Shooting
  12. 05:45Barrel Length and Capacity Discussion
  13. 06:13More Slug Testing: Turkey Target
  14. 07:10Smooth Bore vs. Rifled Barrels for Slugs
  15. 07:43Suitability for Environment and Defense
  16. 08:10Final Thoughts and Sponsor Reminders

Frequently Asked Questions

What is the main advantage of the Mossberg 590A1 Mariner's finish?

The primary advantage of the Mossberg 590A1 Mariner's 'Marine Coat' is its enhanced corrosion resistance. This nickel-based finish is designed to protect the shotgun from rust and environmental damage, making it suitable for harsh conditions like saltwater exposure.

What are the key differences between the 590A1 Mariner and a standard 590A1?

The main differences are the 'Marine Coat' finish for corrosion resistance and the furniture, which in this case is Magpul stock and forend. The 590A1 Mariner also features a heavy barrel, metal safety, and metal trigger guard, common to the A1 designation.

How accurate is the Mossberg 590A1 Mariner with slugs?

The Mossberg 590A1 Mariner, with its cylinder bore barrel, demonstrates good accuracy with slugs at moderate distances, around 70-80 yards. The reviewer likens its performance at these ranges to a large-caliber, short-range rifle.

What type of sights does the Mossberg 590A1 Mariner come with?

This model is equipped with an XS sight system, featuring a ghost ring rear sight and a fiber optic front sight. This setup requires the shooter to get their face down on the stock for proper sight alignment and effective aiming.

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