Description
The 16 gauge has always been the sweet spot between a 12 and a 20, and good semi-autos chambered for it are hard to come by. TriStar filled that gap with the Viper G2 Pro, a gas-operated autoloader that pairs a 28 inch vent rib barrel with a bronze Cerakote receiver and a high-grade Turkish walnut stock with cut checkering and a semi-gloss finish. It weighs in around 6.6 pounds, which is exactly what you want in a gun you plan to carry through pheasant fields or grouse cover from sunup to lunch.
What Sets the Viper G2 Pro Apart
The Pro version of the Viper G2 got some meaningful upgrades over the standard model. You get oversized controls, including a larger bolt handle, bolt release, and an enlarged triangular safety, all of which are easy to run with cold fingers or gloves on. The mag well is opened up for easier loading, and the manual E-Z load magazine cut-off is a handy touch for swapping shells in the field. The chrome-lined chamber and barrel shrug off weather and clean up fast, and the vent rib carries a matted sight plane topped with a fiber optic front sight that picks up light well on gray mornings.
Chokes, Shims, and Field-Ready Setup
The barrel is threaded for Beretta/Benelli Mobil chokes, so aftermarket tube options are nearly endless. This model ships with four tubes covering Skeet, Improved Cylinder, Modified, and Full, plus a choke box and wrench. A shim kit comes standard too, so you can adjust drop and cast to get the gun pointing where you look. A removable shot plug is in the box for migratory bird work.
A 16 Gauge Worth Owning
TriStar builds these through Armsan in Turkey, a factory with a long track record of turning out dependable autoloaders, and backs the gun with a five-year warranty. The gas system runs smooth and keeps recoil soft, which makes an already light-kicking gauge even more pleasant. For upland hunters who appreciate what the 16 brings to the table, this one is a genuinely good-looking, hard-working gun.
Key Specifications
- Manufacturer: TriStar Arms
- Model: Viper G2 Pro
- MPN: 24266
- UPC: 713780242668
- Gauge: 16 Gauge
- Chamber: 2-3/4 in
- Action: Gas-Operated Semi-Auto
- Barrel Length: 28 in Vent Rib, Chrome-Lined
- Capacity: 5+1
- Receiver Finish: Bronze Cerakote
- Stock: Turkish Walnut with Cut Checkering
- Front Sight: Fiber Optic
- Safety: Crossbolt
- Choke Thread Pattern: Beretta/Benelli Mobil
- Weight: 6.6 lbs
- Warranty: 5-Year Manufacturer Warranty
What’s Included
- TriStar Viper G2 Pro 16ga shotgun
- 4 choke tubes (Skeet, Improved Cylinder, Modified, Full)
- Choke box and choke wrench
- Stock shim kit
- Magazine shot plug
- Owner's manual
Frequently Asked Questions
Will the Viper G2 Pro cycle light 16 gauge target loads?
Yes, the gas-operated system is designed to run everything from light target loads up to heavier field loads interchangeably. Like most gas guns, it may benefit from a short break-in period with standard field loads before feeding it the lightest stuff. Once broken in, owners report it cycles reliably across a wide range of shells.
What choke tubes does the TriStar Viper G2 Pro 16 gauge use?
The barrel is threaded for the Beretta/Benelli Mobil pattern, one of the most common choke systems out there. This model includes four tubes covering Skeet, Improved Cylinder, Modified, and Full, along with a choke box and wrench. Aftermarket Mobil-thread tubes from companies like Carlson's and Briley will also fit.
Can I adjust the stock fit on the Viper G2 Pro?
You can. A shim kit comes standard, letting you adjust drop and cast at the stock so the gun mounts and points naturally for your build. Combined with the rubber recoil pad and the soft-shooting gas system, it is an easy gun to fit and shoot comfortably.
Who makes the TriStar Viper G2 Pro and is there a warranty?
TriStar imports the Viper G2 Pro from Armsan, a well-regarded Turkish manufacturer that has been building autoloading shotguns for export since the early 2000s. The same factory has produced guns for other major brands. TriStar backs it with a five-year warranty.



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