Description
The Mossberg 500 SPX 12g, 18″ Barrel, Pump, Pistol Grip Shotgun, 5rd is a purpose-built, tactical pump-action shotgun designed for close-quarters defense and security. It’s a rugged, no-frills 12-gauge built on Mossberg’s proven 500 series action, featuring a menacing pistol grip-only configuration and an 18.5-inch barrel for maneuverability. I’ve put a few hundred rounds of buckshot and slugs through this platform, and it’s a system that just works when you need it to. This specific model is priced at $657.14.
Key Features
- Tactical Pistol Grip Configuration: Aggressive, compact design for tight-space handling and rapid target acquisition.
- 18.5″ Cylinder Bore Barrel: The legal minimum length for a non-NFA firearm, offering maximum maneuverability indoors or in vehicles.
- Proven Mossberg 500 Action: The same dual-action bars and steel-to-steel lockup trusted by military and police worldwide.
- 5-Round Capacity: A standard, practical tube magazine capacity for defensive use.
- SPX Sling Mounts & Picatinny Rail: Integrated front and rear sling swivel studs and a top-mounted rail for optics or ghost ring sights.
Specifications & Details
| Gauge | 12 Gauge (3″ Chamber) |
| Barrel Length | 18.5 inches |
| Overall Length | Approx. 37.5 inches |
| Capacity | 5+1 Rounds |
| Action | Pump Action |
| Stock | Synthetic Pistol Grip |
Weighing in at just over 7 pounds unloaded, the SPX feels substantial but not cumbersome. The 18.5-inch barrel is the key spec here—it keeps the overall length down to a very manageable 37.5 inches, which is a critical advantage in a defensive scenario. The synthetic pistol grip is textured and provides a solid, non-slip hold. Here’s the thing—this is a dedicated tool, not a clay-busting field gun. Its design philosophy is singular.
Who This Shotgun Is For
This Mossberg is for the home defender who prioritizes simplicity and reliability above all else. It’s for the shooter who wants a dedicated defensive firearm that requires minimal fuss—no gunsmithing required to get it range-ready. It’s also a solid choice for a vehicle security platform (where legal) due to its compact size. If your primary concern is a trustworthy, intimidating, and effective close-range stopper that you can grab and go, this fits the bill. It ships to Missouri and compliant US states.
Pros & Cons
Pros: Legendary Mossberg reliability. The pistol grip and short barrel make it incredibly fast and easy to handle in confined spaces. The SPX model includes useful tactical features like the rail and sling mounts right out of the box. It’s mil-spec compatible with a huge aftermarket for parts like lights and different grips if you want to customize later.
Cons: The pistol grip-only design sacrifices traditional shotgun shooting ergonomics—it’s harder to shoot accurately at distance and recoil management is more demanding. You won’t be shooting sporting clays with this. Some find the safety location (top of the receiver) less intuitive with a pistol grip than a traditional tang safety.
Frequently Asked Questions
Q: Can I add a shoulder stock to this pistol grip model?
A: Yes, but it may require a specific conversion kit. The Mossberg 500 receiver is designed to accept different stocks. You can find compatible kits from brands like Hogue or Mesa Tactical to convert it to a more traditional configuration, which is a great option if you find the pistol grip too punishing for extended practice.
Q: What kind of ammunition should I use for home defense?
A: For indoor defense, most experts recommend #4 buckshot or low-recoil 00 buckshot. These loads offer effective stopping power with less risk of over-penetration through walls compared to slugs or larger buck. Always pattern your chosen load at your intended distance to see how it performs.
Q: Is it ready to use as soon as I get it?
A: Essentially, yes. It’s drop-in ready. You’ll need to perform a basic function check, clean and lubricate it, and of course, familiarize yourself with its operation and safety. Remember, an FFL transfer is required for firearm purchases, so you’ll need to coordinate that with your local dealer when ordering.
If the idea of a straightforward, intimidatingly reliable defensive shotgun appeals to you, the Mossberg 500 SPX is a compelling choice. You can find this model available at firearms-missouri.com for Missouri residents and nationwide.
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