Savage Arms 320 Security Thumbhole 12 GA 18.5″ Pump
Video review
Expert review
About this product
The Savage Arms 320 Security Thumbhole is a pump-action shotgun designed for reliable, close-quarters defensive use, featuring an 18.5-inch chrome-lined barrel and a fixed thumbhole synthetic stock. Built on a steel receiver with a rotary bolt and dual slide bars, it delivers straightforward mechanical operation trusted by those who prioritize dependability over features. For budget-minded shooters needing a utilitarian 12-gauge, it fills a specific niche where simpler often proves more reliable under stress.
What is the Savage Arms 320 Security Thumbhole used for?
The 320 Security Thumbhole is engineered for close-quarters defensive scenarios and utility work within 25 yards. Its 18.5-inch barrel and 39.1-inch overall length make it maneuverable in confined spaces, while the fixed front bead sight is adequate for rapid target acquisition at typical defensive distances. The synthetic stock resists weather, and the 3-inch chamber handles a wide range of 12-gauge loads, from reduced-recoil buckshot to standard rifled slugs.
How does the Savage Arms 320 Security Thumbhole compare to the Stevens 555 Sporting O/U?
The Savage 320 is a dedicated pump-action defensive tool, while the Stevens 555 Sporting O/U is a break-action shotgun built for clay sports and field hunting. The Stevens 555 is better for sport shooting with its 30-inch barrel and refined balance, while the Savage 320 is superior for home defense due to its faster follow-up shot capability and more compact profile. You choose the 320 for reliability under stress; you choose the Stevens 555 for recreational precision.
What does it weigh and what are the dimensions?
The shotgun has a factory weight of 7.2 pounds unloaded and measures 39.1 inches in overall length. The 18.5-inch barrel is chrome-lined for corrosion resistance, and the thumbhole stock adds approximately 14 inches of length of pull. For comparison, a typical tactical AR-15 platform like the Stevens 334 rifle in .308 weighs about 7.5 pounds, making the 320 a similarly manageable weight for its role.
Who is this NOT for?
This is not for the shooter seeking a versatile, multi-role firearm or one interested in competitive clay shooting. The fixed sights and pump-action cycle are slower than a semi-automatic for follow-up shots, and the thumbhole stock limits some aftermarket stock options. If your primary use involves precision wing shooting or you require modular accessory mounting, consider a Stevens 555 Sporting O/U or a more tactical semi-auto platform.
What’s in the box?
You receive the complete shotgun, one magazine plug to comply with federal migratory bird regulations, and a basic owner’s manual covering disassembly and safety protocols. Expect no additional accessories like a case, sling, or cleaning kit—this is a bare-bones delivery consistent with its sub-$200 price point. The manual includes specific torque values for sight installation, though none are required for initial operation.
Is the Savage Arms 320 Security Thumbhole worth it at $192.99?
At $192.99, the 320 Security Thumbhole represents significant value for a dedicated defensive shotgun built on a steel receiver. You are paying for core mechanical reliability—the chrome-lined barrel, dual slide bars, and rotary bolt—not refinements. For comparison, a comparable Mossberg Maverick 88 Security often retails around $230, making the Savage a legitimate budget alternative. If your priority is a no-frills tool that will cycle 2¾-inch and 3-inch shells without fail, this price is justified.
Specs at a glance
Pros & cons
What works
- Steel receiver construction — more durable than aluminum alloy receivers on some budget pumps
- Chrome-lined 18.5" barrel — resists corrosion and extends barrel life with high-volume shooting
- Dual slide bars — provide smooth, reliable pump action and resist binding under rapid fire
- 7.2 lb unloaded weight — manageable for most shooters while helping mitigate 12-gauge recoil
Trade-offs
- Fixed thumbhole stock — limits customization and may not fit shooters with very small or large hands
- No choke threading — cylinder bore only, restricting versatility for hunting or sport shooting
- Basic front bead sight — no rear reference, making precision slug shooting beyond 50 yards challenging
Key attributes
| upc | 011356232465 |
| manufacturer | Savage |
| manufacturer part number | 23246 |
| action | Pump Action |
| atf type | Shotgun |
| barrel finish | MATTE BLACK |
| barrel length | 18.5" |
| caliber/gauge | 12 Gauge |
| capacity | 5 + 1 |
| length | 38.5 |
| package height | 7.5 |
| package width | 3.0 |
| product type | Shotgun |
| safety | Crossbolt |
| shipping weight | 8.6 |
| sights | Bead Front Sight |
| sights type | Fixed Sights |
| units per box | 1 |
Frequently asked questions
- Is it compatible with standard 12-gauge choke tubes?
- No, the 18.5-inch Security barrel is a fixed cylinder bore with no choke threading. This configuration is optimal for shooting buckshot and slugs at defensive distances but limits pattern control for sporting clays or hunting. For choke compatibility, you would need a separate, longer Savage 320 barrel with threaded choke system.
- Does it fit in a standard 40-inch rifle case?
- Yes, the 39.1-inch overall length allows it to fit in most 40-inch hard or soft cases with minimal extra room. We recommend measuring your specific case, as some interior padding can reduce effective length by up to 1.5 inches. For transport, a 42-inch case provides a more comfortable margin.
- How long does shipping take to an FFL?
- Ironclad Armory processes orders within 1-2 business days, with ground shipping typically taking 3-5 additional business days to reach your selected Federal Firearms License (FFL) holder. Total timeline from order to FFL notification averages 5-7 business days, not including the FFL's processing time for your background check.
- Can I return it if it doesn't fit?
- Firearms sales are final once transferred through an FFL due to federal regulations, so fit must be verified beforehand. We recommend handling a similar model at a local dealer to confirm the 14-inch length of pull works for you. Ironclad Armory covers manufacturer defects under warranty for one year from purchase date.
- Does this work with a Magpul SGA stock?
- No, the Savage 320 uses a proprietary stock attachment system that is not compatible with the Mossberg 500/590-pattern Magpul SGA stock. Aftermarket stock options for the 320 are limited compared to the Mossberg ecosystem. The fixed thumbhole design is integral to the receiver on this model.