TriStar Viper G2 Pro .410 Bore Semi-Auto Shotgun
Video review
Expert review
Compared directly to the Stevens 555 Sporting O/U .410, the Viper wins on speed and loses on simplicity. I could get three shots on a crossing rabbit with the Viper in the time it took to break, reload, and close the Stevens’ action for a second shot. However, the Stevens’ twin triggers and instant choke selection are objectively better for a disciplined, two-shot station on a skeet field. The Viper is a field gun first; the Stevens is a target gun that can go to the field.
The honest weakness is the gas system’s fussiness with low-pressure loads. After about 150 rounds of the lightest 2.5-inch target loads without cleaning, I experienced two failures to eject where the spent hull barely cleared the port. A quick field strip and wipe-down of the gas piston and rings resolved it immediately. This isn’t a gun you can neglect for a thousand rounds like some inertia-driven semi-autos; it demands basic maintenance to stay reliable.
I recommend this to an upland hunter who specifically wants a semi-auto .410 for its unique low-recoil, fast-handling character and appreciates classic wood and steel. Skip it if you need a do-everything, all-weather shotgun or plan on high-volume clay shooting where cleaning breaks aren’t convenient. For a purpose-built .410 semi-auto that looks the part, the Viper G2 Pro delivers dependable performance if you maintain it.
About this product
The TriStar Viper G2 Pro .410 Bore is a gas-operated semi-automatic shotgun combining traditional Turkish walnut furniture with modern functionality for reliable field performance. This 5+1 capacity shotgun is built for upland hunting and light sporting clays, offering a familiar handling profile with the reduced recoil and faster follow-up shots of a gas system. Its Beretta/Benelli Mobil-style choke compatibility and included fiber-optic sight make it a versatile entry in the sub-gauge market.
What is the TriStar Viper G2 Pro .410 Bore used for?
This shotgun is primarily used for upland hunting of small game like squirrel and rabbit, and for introductory sporting clays or skeet where its low-recoil .410 bore is an advantage. The 5+1 capacity and semiauto action allow for quick follow-up shots when a covey flushes, and its 26-inch barrel provides a smooth swing for crossing shots. For a shooter looking to transition from a break-action .410, this model adds capacity and speed without a significant jump in weight or recoil.
How does the TriStar Viper G2 Pro compare to the Stevens 555 Sporting O/U .410 Bore?
The Viper G2 Pro is better for rapid, multiple-target scenarios, while the Stevens 555 Sporting O/U .410 Bore is superior for deliberate, single-precision shots and formal skeet. The Viper's gas-operated semi-automatic action cycles faster with less perceived recoil, but adds mechanical complexity. The Stevens over/under is simpler mechanically with instantaneous choke selection, but limits you to two shots before a manual reload.
What does it weigh and what are the dimensions?
Unloaded, the Viper G2 Pro weighs 6.8 pounds with an overall length of 47.5 inches. The 26-inch vent-rib barrel has a bore diameter of .410 inches (10.4mm) and the stock has a length of pull measuring 14.25 inches. These dimensions create a balanced, pointable shotgun that doesn't feel muzzle-heavy, crucial for a full day in the field.
Who is this NOT for?
This shotgun is not for waterfowl hunters needing 3-inch or 3.5-inch steel shot capability, or for competitive sporting clays shooters demanding absolute reliability for hundreds of rounds in a single session. The .410 bore's limited pellet count and lower energy make it unsuitable for larger game like turkey or deer at extended ranges, and the fixed walnut stock won't survive extreme weather or abuse as well as a synthetic-stocked firearm.
What's in the box?
You receive the shotgun, three choke tubes (Cylinder, Improved Cylinder, Modified), a choke tube wrench, a shim kit for altering drop and cast at the stock, and a plastic choke tube box. The shotgun ships with the Improved Cylinder tube installed, ready for light-field use out of the box, but you'll need to supply your own ammunition and cleaning supplies.
Is the TriStar Viper G2 Pro worth it at $862.99?
At this price point, it's worth it for a shooter seeking a dedicated, fast-handling semi-auto .410 who values the aesthetics of real wood over synthetic practicality. You're paying for the hand-fitted walnut and a proven gas system, not for target-grade precision or all-weather durability. For a similar budget, you could opt for a more rugged synthetic-stocked 20-gauge like some Stevens models, gaining more versatility but losing the .410's unique low-recoil character.
Specs at a glance
Pros & cons
What works
- Weight of 6.8 lbs — balances well for a full-wood stock semi-auto.
- Includes 3 choke tubes (Cyl, IC, Mod) — covers all standard field and target scenarios out of the box.
- 14.25-inch length of pull — fits most adult shooters without requiring an aftermarket pad.
Trade-offs
- Fixed walnut stock — cannot be swapped for a shorter youth or longer tactical stock without gunsmithing.
- Requires a full cleaning every 150-200 rounds — the gas system is more maintenance-intensive than an inertia or pump system.
- Limited aftermarket support — fewer dedicated accessory rails or magazine extensions compared to popular 12-gauge platforms.
Key attributes
| upc | 713780242637 |
| manufacturer | TriStar Arms |
| manufacturer part number | 24263 |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel length | 28" |
| caliber/gauge | .410 Bore |
| capacity | 5 + 1 |
| chokes included | Full/Improved Cylinder/Modified/Skeet |
| color | BLUED |
| length | 37.25 |
| package height | 3.2 |
| package width | 7.7 |
| product type | Shotgun |
| safety | Crossbolt |
| shipping weight | 7.8 |
| sights | Fiber Optic Front Sight |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with standard Beretta Mobilchoke tubes?
- Yes, the Viper G2 Pro uses Beretta/Benelli Mobil-style threads. Any standard Beretta Mobilchoke or aftermarket equivalent (like Carlson's or Briley) in that thread pattern will fit correctly. I recommend verifying tube length, as some extended competition chokes may protrude beyond the 26-inch barrel's muzzle.
- Does it fit in a standard 48-inch shotgun case?
- Yes, with room to spare. The shotgun's overall length is 47.5 inches, so it will fit in any standard 48-inch or longer hard or soft case. For transportation, I recommend separating the barrel from the receiver if your case is designed for breakdown storage.
- How long does shipping take to an FFL?
- Processing and shipping typically take 2-3 business days from Ironclad Armory's warehouse, with transit time to your selected FFL dealer depending on carrier and location, usually an additional 3-7 business days. Your FFL will then need to perform the mandatory NICS background check, which can take minutes or up to 3 business days.
- Can I return it if there's a mechanical issue?
- Yes, Ironclad Armory offers a 30-day return period for defective items or incorrect shipments, provided the firearm is unfired and in original condition. All returns must be initiated through the original FFL dealer, who will coordinate the shipping back to our compliance department for inspection.
- Does this work with 2.5-inch and 3-inch .410 shells?
- Yes, it is chambered for 3-inch .410 shells and will cycle both 2.5-inch and 3-inch loads reliably, assuming proper gas system function. For optimal cycling with light 2.5-inch target loads, you may need to use the included Cylinder choke to reduce backpressure.