The TriStar Cobra III 20 Gauge Pump Shotgun, 26-inch, 3-inch Chamber is a field-proven pump that brings modern adaptability to the classic scattergun platform. With a lightweight alloy receiver, a ventilated-rib barrel, and full compatibility with Beretta/Benelli Mobil-thread choke tubes, this shotgun is ready for upland birds, waterfowl, and sporting clays right out of the box. It ships with three choke tubes (IC, Mod, Full), a choke box, and wrench, plus a fiber-optic front sight and swivel studs for a sling. At $415.39, it delivers serious performance without breaking the bank.
| Manufacturer | TriStar Arms |
|---|---|
| Model | Cobra III |
| Material | Aluminum alloy receiver, steel barrel (per manufacturer specs) |
| Compatibility | Beretta/Benelli Mobil-thread choke tubes |
| Finish | Matte blued barrel, matte black receiver |
| Weight | Approx. 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Beretta/Benelli Mobil-thread Choke System — Why it matters: You can swap chokes instantly for clays, pheasants, or ducks using the same proven thread pattern found on high-end Italian shotguns. Three chokes included.
- 26-Inch Vent-Rib Barrel with Fiber-Optic Front Sight — Why it matters: The vent rib cuts mirage and the fiber-optic front sight snaps onto targets fast, making it ideal for moving game and fast sporting clays presentations.
- 3-Inch Chamber with 5+1 Capacity — Why it matters: You can run 2¾-inch target loads or 3-inch magnum shells for waterfowl and turkey, giving you one gun for multiple seasons.
- Soft Rubber Recoil Pad with Swivel Studs — Why it matters: Reduces felt recoil during long days in the field, and the factory-installed studs let you attach a sling without drilling or gunsmithing.
- Fixed Field-Style Stock with Checkering — Why it matters: The traditional stock geometry provides a natural point of aim, and the checkered grip and forend keep your hands locked on even in wet conditions.
Who It’s For
This shotgun is built for the tech-savvy shooter who wants modern choke compatibility and a lightweight pump without the premium price tag. Whether you’re a new hunter building your first gun cabinet or an experienced shooter looking for a dedicated 20-gauge field gun, the Cobra III fits. It’s also a smart pick for left-handed shooters (the safety is reversible) and anyone who wants to experiment with different choke tubes for pattern tuning.
Pros & Cons
- Pro: Accepts Beretta/Benelli Mobil-thread chokes — opens up the entire aftermarket choke universe.
- Pro: Lightweight at ~6.5 lbs — easy to carry all day in the field.
- Pro: Three chokes included — ready for dove, pheasant, or clays out of the box.
- Con: The aluminum receiver can show wear faster than steel if you’re rough on gear — a trade-off for the weight savings.
Comparison: TriStar Cobra III vs. Mossberg 500 vs. Remington 870
| Feature | TriStar Cobra III | Mossberg 500 | Remington 870 |
|---|---|---|---|
| Weight | ~6.5 lbs | ~7.0 lbs | ~7.5 lbs |
| Choke Thread | Beretta/Benelli Mobil | Accu-Choke (Mossberg proprietary) | Rem-Choke (Remington proprietary) |
| Included Chokes | 3 (IC, Mod, Full) | 1 (Mod) typically | 1 (Mod) typically |
| Receiver Material | Aluminum alloy | Aluminum alloy | Steel |
| Price | $415.39 | $450–$500 | $480–$550 |
FAQ
What choke tubes does the TriStar Cobra III accept?
It accepts Beretta/Benelli Mobil-thread choke tubes. That’s the same thread pattern used on many Benelli and Beretta shotguns, so you have a huge selection of aftermarket options from brands like Carlson’s, Briley, and Trulock.
Is the TriStar Cobra III good for left-handed shooters?
Yes. The safety is reversible, and the pump action is inherently ambidextrous. The stock does not have a cast-on or cast-off, so it works well for both right- and left-handed shooters.
Can I shoot steel shot through the included chokes?
The included Improved Cylinder and Modified chokes are typically rated for steel shot, but Full is not. Always check the choke tube markings — look for “Steel Shot OK” or “Steel Rated” before using steel in the Full tube.
Does the TriStar Cobra III come with a sling?
No, it includes swivel studs but no sling. You’ll need to purchase a sling separately. The studs are standard 1¼-inch (loop size) compatible with most hunting slings.
Ready to Add the TriStar Cobra III to Your Gun Safe?
This 20-gauge pump gives you modern choke flexibility, a lightweight build, and classic reliability — all for under $420. Whether you’re chasing roosters in the cornfields or breaking clays on the weekend, the Cobra III is ready to run. Order now and we’ll ship it to your FFL within 1-2 business days.
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Last updated: April 2026
Explore more: Pump Action Shotguns | 20 Gauge Shotguns
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