When evaluating a compact tactical shotgun for marine, home defense, or range use, practical details matter: barrel length, action type, finish durability, and accessories all affect performance and value. This review breaks down those specifics so you can decide if this platform fits your mission profile.
MOSSBERG 500 MARINER is a modern-production, 12 gauge pump-action tactical shotgun with an 18.5″ barrel and several practical upgrades. 
Overview and Notable Specifications
Serial number T538128 identifies this specific unit. The 12 gauge chamber accepts both 2 3/4″ and 3″ shells, providing flexibility between reduced-recoil loads and higher-performance 3″ magnum payloads. The 18.5″ barrel keeps the package compact for maneuvering in close quarters while maintaining effective pattern density for defensive loads. The bore is described as very good, an important indicator for consistent shot patterns and reliable cycling.
Upgrades, Finish, and Ergonomics
Factory and aftermarket upgrades make this Mariner stand out. It features a Marinecote finish intended for corrosion resistance in humid and salt environments; the finish shows wear, which is consistent with use but does not compromise function. A side-folding stock reduces footprint and brings the length of pull to 14.5″, making this shotgun easier to store or carry in tight spaces. Included with the firearm is a JIC M500 Mariner tube case for transport and protection. Price is listed at $799.99, reflecting the upgraded configuration and included case.
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Performance, Applications, and Handling
Overall condition is listed as very good (S17254). For buyers seeking a compact, upgrade-equipped Mossberg 500 platform with marine protection and a folding stock, this Mariner configuration is a solid choice. Check current availability
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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