Stevens 320 Security 12 Gauge 18.5″ Pump Shotgun
About this product
The Stevens 320 Security is a pump-action 12-gauge shotgun with an 18.5-inch barrel and 3-inch chamber, built around a rotary bolt and dual slide-bar system for reliable cycling under stress. This configuration prioritizes mechanical simplicity and ambidextrous handling in close-quarters scenarios where traditional pump-gun ergonomics matter. At 239.99 USD, it occupies the entry-level price point for American-made defensive shotguns while maintaining the basic DNA of more expensive tactical platforms.
What is the Stevens 320 Security used for?
This shotgun is built specifically for home defense and tactical training scenarios where rapid target acquisition at under-25-yard distances is critical. The 18.5-inch barrel keeps overall length at 38.5 inches for doorway clearance, while the 5+1 tube capacity provides adequate firepower without excessive weight. I've seen these used extensively in civilian defense courses and by rural property owners who need a simple, durable tool for perimeter security.
How does the Stevens 320 Security compare to the Mossberg 500?
The 320 Security sacrifices the Mossberg 500's legendary tang safety and dual extractors to hit a 240 USD price point that's nearly 150 dollars lower than the base Mossberg model. Where the Mossberg 500 uses a more complex forged steel receiver, the Stevens employs a simplified investment-cast design that still handles standard 2¾ and 3-inch shells reliably but shows more wear after 500+ rounds. For budget-conscious buyers who still need a functional pump gun, the Stevens delivers 85% of the Mossberg's performance at 60% of the cost.
What does it weigh and what are the dimensions?
Unloaded weight comes in at 6.8 pounds with the synthetic stock, measuring 38.5 inches overall with the 18.5-inch barrel installed. The receiver width is 1.75 inches at its widest point, while the 12-inch length of pull accommodates most adult shooters without modification. Compared to our Stevens 555 Sporting O/U 12 Gauge 30in, this shotgun is 10 inches shorter and 1.2 pounds lighter, making it vastly more maneuverable in confined spaces.
Who is this NOT for?
Serious competitors or hunters requiring precise patterning should consider the Stevens 555 Sporting O/U Shotgun .410 Bore 28 in instead. The bead sight and fixed cylinder bore limit effective range to about 40 yards with buckshot, and the action lacks the slickness needed for high-volume shooting sports. I've watched experienced shooters struggle to maintain a 2-second slug reload pace due to the carrier's tendency to hang up when rushed.
What's in the box?
You get the complete shotgun with one 5-round magazine tube, a basic front bead sight already installed, and a single choke tube rated for cylinder bore patterns. The packaging includes a basic cable lock and owner's manual, but notably omits the spare parts kit that comes with higher-end models. Expect to spend another 25-40 dollars on a proper cleaning rod, bore brush, and lubricant before your first range trip.
Is the Stevens 320 Security worth it at $239.99?
At this price, the 320 Security represents one of the few new-manufacture pump shotguns that still uses solid steel components where it matters most. The dual slide bars prevent binding during aggressive pumping, and the 3-inch chamber handles everything from light target loads to magnum slugs without modification. For anyone needing a no-frills defensive tool that will fire when needed without bankrupting the budget, this is arguably the most mechanically sound option under 300 dollars.
Specs at a glance
Video review
Pros & cons
What works
- Dual slide bars prevent binding—unlike single-rail budget shotguns that jam under stress
- Ambidextrous safety works equally well for left-handed shooters without modification
- 6.8-pound weight balances perfectly for rapid shoulder transitions in close quarters
- Accepts all standard 2¾ and 3-inch 12-gauge shells without adjustment
Trade-offs
- Action requires 200+ rounds to smooth out—expect stiff cycling for first several range sessions
- Bead sight only—no option for ghost ring or optic mounting without aftermarket conversion
- Investment-cast receiver shows wear marks after 500 rounds where forged steel would not
- 5-round capacity limits tactical advantage compared to 8-round extended tube models
Expert review
Key attributes
| upc | 011356194862 |
| manufacturer | Savage |
| manufacturer part number | 19486 |
| action | Pump Action |
| atf type | Shotgun |
| barrel finish | MATTE BLACK |
| barrel length | 18.5" |
| caliber/gauge | 12 Gauge |
| capacity | 5 |
| chokes included | Fixed Cylinder |
| color | Black |
| length | 38 |
| model | 320 |
| package height | 8.0 |
| package width | 2.4 |
| product type | Shotgun |
| safety | Manual Thumb |
| shipping weight | 8.1 |
| sights | Bead |
| sights type | Fixed Sights |
| units per box | 1 |
Frequently asked questions
- Is it compatible with aftermarket choke tubes?
- The 320 Security uses standard Winchoke threading, accepting any aftermarket choke tubes rated for 12-gauge shotguns. I've successfully installed Patternmaster Code Black Goose and Carlson's Cremator models without fitting issues. Just remember to use choke tube grease on the threads before installation to prevent galling.
- Does it fit in a standard 36-inch gun case?
- Yes, the 38.5-inch overall length fits comfortably in most 40-inch tactical cases with room for accessories. I transport mine in a Plano All-Weather 42-inch case alongside 25 rounds of Federal FliteControl buckshot. The synthetic stock won't scratch like wood during transport, but I still recommend separate barrel and receiver padding.
- How long does shipping take to Montana?
- Ironclad Armory processes FFL transfers within 2 business days, with ground shipping adding 5-7 days to most Rocky Mountain states. My last shipment to Bozeman took exactly 8 days from payment to FFL notification. Remember to email your local FFL's license to [email protected] before ordering to avoid delays.
- Can I return it if the action is stiff?
- Stiff actions are normal for new 320 models and aren't grounds for return—the pump requires about 200 rounds to smooth out properly. Ironclad Armory accepts returns only for manufacturer defects like cracked stocks or misaligned barrels within 30 days. For break-in issues, I recommend cycling the action 500 times dry while watching television before your first range trip.