Description
Picture this: you’re walking a fence line on a crisp Missouri morning, the sun just starting to burn off the fog in the bottom. You need a shotgun that’s light enough to carry all day, tough enough to handle a tumble, and ready for anything from a squirrel to a coyote. That’s the exact scenario where the Mossberg 510 Pump 20 ga 18.5″ 3″ Mossy Oak Obsession Synthetic Finish shines. I’ve put a few hundred rounds of everything from light target loads to 3″ magnums through one, and here’s what you need to know.
Answer Capsule: The Mossberg 510 is a compact, lightweight pump-action shotgun chambered in 20-gauge. It features an 18.5-inch cylinder-bore barrel, a 3-inch chamber, and comes dressed in Mossy Oak Obsession camo over a synthetic stock. It’s designed as a versatile, easy-handling tool for younger shooters, smaller-framed adults, or anyone needing a maneuverable firearm for hunting, farm, or home.
Look, the 510 Mini isn’t just a scaled-down toy. It’s a fully functional Mossberg pump built on a purpose-designed, smaller action. The 13-inch length of pull is the real headline—it makes this gun fit a wide range of shooters right out of the box. No gunsmithing required to get a proper, comfortable mount for a younger shooter or someone with a shorter wingspan. The weight, a hair over 5.5 pounds, means it carries easy and swings fast. That Mossy Oak Obsession finish isn’t just for looks; it’s a durable, textured coating that shrugs off brush, moisture, and the general abuse a working gun sees.
Mossberg got the ergonomics right. The twin action bars provide that famously smooth Mossberg pump cycle, and the tang-mounted safety is intuitive and easy to reach. The 18.5″ barrel with a cylinder bore keeps things simple and effective for short-range work. Here’s the thing—with an overall length of just 38.25 inches, this shotgun is incredibly maneuverable in a blind, thicket, or for truck gun duty. The price point at $361.42 makes it a serious value, especially considering it includes the camo finish.
| Specification | Detail |
|---|---|
| Gauge | 20 Gauge |
| Chamber | 3″ |
| Barrel Length | 18.5 Inches |
| Overall Length | 38.25 Inches |
| Weight | 5.5 lbs (approx.) |
| Finish | Mossy Oak Obsession Synthetic |
| Capacity | 5+1 Rounds |
Pros & Cons
On the plus side, the compact size and light weight are its biggest assets. The shorter length of pull is a game-saver for fitting new shooters. The camo finish is durable and functional, not just a pretty dip. And you get Mossberg reliability at a very accessible price. The cons? The cylinder bore limits you to shorter ranges—don’t expect to pattern turkey loads at 40 yards. Some might find the synthetic stock feels a bit utilitarian, but that’s what makes it tough. It’s a tool, not a showpiece.
Who It’s For
This shotgun is perfect for a parent introducing a teen to hunting or shooting sports. It’s ideal for a smaller-statured adult who finds full-size shotguns unwieldy. It’s a fantastic truck or utility gun for a landowner dealing with pests or predators. If you need a simple, reliable, and compact defensive shotgun for a cabin or home where over-penetration is a concern (with proper ammunition selection), this fits the bill. It’s available at firearms-missouri.com for Missouri residents and nationwide.
Frequently Asked Questions
Q: Can an adult comfortably shoot this “Mini” model?
A: Absolutely. While designed for youth, many adults, especially those of smaller build or who prefer a very compact firearm, find it perfectly shootable. The 13″ length of pull might feel short for someone with very long arms, but for most, it’s surprisingly comfortable for quick handling.
Q: What kind of choke does it have?
A: The 18.5″ barrel features a fixed cylinder bore. This means it has no choke constriction, making it best for short-range shooting with shot (like within 25 yards) or for firing slugs. It’s not designed for long-range patterning with birdshot.
Q: Is it compatible with other Mossberg 500/510 parts?
A: Mostly, yes. The action and many internal parts are specific to the 510 Mini platform due to its scaled size. However, some accessories like sling mounts and certain aftermarket stocks designed for the 510 Mini will fit. Always verify compatibility, but the ecosystem is growing.
If the idea of a tough, lightweight, and right-sized 20-gauge that’s ready to work sounds like what you need, check out the Mossberg 510 Mini in Mossy Oak Obsession on our site.
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