Description
The Mossberg 590 12/20 Bl/syn 3 Xs Sights is a purpose-built, no-frills pump-action shotgun designed for serious defensive and tactical use. It’s a 12-gauge model with a 20-inch barrel, synthetic stock, and a ghost ring rear sight paired with a front XS Sight white dot for fast target acquisition. I’ve put hundreds of rounds through this platform, and it’s built to handle the hard use you’d expect from a design that meets U.S. military specifications.
Key Features
- Military-Proven 590 Platform: Built to MIL-SPEC 3443G, which means it’s over-engineered for civilian reliability.
- 3-Point XS Sights System: Ghost ring rear and a front white dot post make for instinctive, rapid aiming in low light.
- Dual Extractors & Steel-to-Steel Lockup: This is where the 590’s legendary reliability comes from—positive extraction and a rock-solid lockup every time.
- Ambidextrous Safety: A tang-mounted safety is easy to operate naturally with your thumb, right or left-handed.
- Heavy-Wall Barrel & Aluminum Receiver: Provides durability without excessive weight, balancing heft and maneuverability.
Specifications & Details
| Specification | Detail |
|---|---|
| Gauge | 12 Gauge (3″ Chamber) |
| Barrel Length | 20 Inches |
| Overall Length | 41 Inches |
| Capacity | 8+1 Rounds |
| Weight | 7.25 lbs (Approx.) |
| Stock | Synthetic, Black |
| Sights | XS Ghost Ring Rear, White Dot Front |
That eight-round tube capacity gives you a real advantage in a defensive scenario without making the gun unwieldy. The synthetic stock is tough, weather-resistant, and requires virtually no maintenance—a huge plus for a gun that might live in a vehicle or by the bedside. Here’s the thing—while it’s a tactical workhorse, the simple design means it’s also straightforward to maintain. No gunsmithing required for basic disassembly and cleaning, which I appreciate after a long day at the range.
Who This Shotgun Is For
This is for the shooter who views a shotgun as a tool, not a hobby. It’s ideal for home defense, as a reliable truck gun (where legal), or for tactical training courses. If you want a shotgun that works every single time, with sights designed for speed under pressure, this is it. It’s also a great platform for those who like to customize, as it’s compatible with a huge array of Mossberg 500/590 aftermarket parts from brands like Magpul (their SGA stock is a popular drop-in upgrade) and Streamlight for weapon-mounted lights.
Pros & Cons
Pros: The reliability is unquestionable. The sight system is a massive upgrade over a simple bead for defensive work. The construction is rugged and built to last for decades. At $527.99, it represents a significant value for a feature set usually found on more expensive guns. The 20-inch barrel strikes a great balance between swing and pointability in close quarters.
Cons: It’s a dedicated tool—not a refined sporting gun. The synthetic stock, while durable, may feel utilitarian to some. The pump action demands practice to run effectively under stress. The weight, just over seven pounds, is noticeable during extended carry but contributes to manageable recoil.
Frequently Asked Questions
Q: Is the 20″ barrel too long for home defense?
A: Not at all. The 20-inch barrel provides a full-length magazine tube for that 8+1 capacity and improves sight radius and swing dynamics. It’s still very maneuverable in hallways and doorways, especially compared to longer hunting barrels.
Q: Can I use it for hunting or clays?</n
A: You could, but it’s not ideal. The ghost ring sights and shorter barrel are optimized for close, fast targets. For hunting or sport shooting, a longer barrel with a choke system and a different sight picture is preferable. This is a specialist.
Q: What’s the difference between the 590 and the more common 500?</n
A: The key differences are the 590’s metal trigger guard and safety, heavier-walled barrel, and often a bayonet lug. The 590 is the model specifically adopted by the military, so it’s built to a slightly more rugged standard, though both are incredibly reliable. This model ships to Missouri and compliant US states through your local FFL.
If you need a serious, no-excuses shotgun that’s ready to work right out of the box, the Mossberg 590 with XS Sights is a hard option to beat. Check availability for this model at firearms-missouri.com for Missouri residents and nationwide.
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