Description
A 3.5 inch chambered semi-auto used to mean spending serious money. The TriStar Viper Max changes that math. This gas-operated 12 gauge is built around a two-piston system, with one piston tuned for light 2.75 inch target and upland loads and a second for heavy magnum shells. Swapping between them takes a minute, and TriStar even molded a storage spot into the forearm so the spare piston rides with the gun instead of getting lost in a range bag drawer. The result is one shotgun that can break clays on a Saturday and pound geese with 3.5 inch loads the next morning.
Built for the Blind
This version of the Viper Max wears a Burnt Bronze Cerakote finish on the receiver and barrel over a Mossy Oak Shadow Grass Blades stock and forearm, a combo made for cattails and flooded timber. The 28 inch vent rib barrel carries a matted sight plane and a green fiber optic front sight that stays bright in low morning light when the birds are working. Both the chamber and barrel are chrome lined, a smart touch for a gun that will spend its life around water, mud, and corrosive weather. Over-molded rubber grip panels on the stock and forearm keep your hands planted with wet gloves, and the substantial recoil pad takes real sting out of magnum loads, on top of what the gas system already soaks up.
Viper Max Features That Earn Their Keep
The 5+1 capacity magazine includes a removable shot plug with a quick-removal design, and a magazine cut-off lets you empty the tube at the end of the hunt without cycling every shell through the action. Sling swivel studs come installed, and the bolt locks open on the last round. Four Beretta/Benelli Mobil pattern choke tubes are included, Skeet, Improved Cylinder, Modified, and Full, so you can go from the clays course to the turkey woods without buying anything extra. At 7.4 pounds it swings smoothly without wearing you out on long walks, and TriStar backs it with a five year warranty. For hunters who want 3.5 inch capability without the premium brand price tag, this one delivers where it counts.
Key Specifications
- Manufacturer: TriStar Arms
- Model: Viper Max
- Manufacturer Part Number: 24189
- UPC: 713780241890
- Gauge: 12 Gauge
- Chamber: 3.5"
- Action: Gas-Operated Semi-Auto (Dual Piston)
- Barrel Length: 28" Chrome-Lined, Vent Rib
- Capacity: 5+1
- Choke Threads: Beretta/Benelli Mobil
- Sights: Fiber Optic Front
- Safety: Crossbolt
- Finish: Burnt Bronze Cerakote / Mossy Oak Shadow Grass Blades
- Weight: 7.4 lbs
- Hand: Right Hand
- Warranty: 5 Year Manufacturer Warranty
What’s Included
- TriStar Viper Max 12ga semi-auto shotgun
- Light load gas piston (installed setup) and heavy load gas piston
- 4 Beretta/Benelli Mobil choke tubes (Skeet, Improved Cylinder, Modified, Full)
- Magazine shot plug
- Sling swivel studs (installed)
- Owner's manual
Frequently Asked Questions
How does the two-piston system on the Viper Max work?
The gun ships with two gas pistons: a light load piston for 2.75 inch target and field loads, and a heavy load piston for stouter shells including 3.5 inch magnums. You swap them based on what you're shooting, and the spare stores right in the forearm so it stays with the gun. It's a good idea to pattern and function test your preferred loads with each piston, since some hot 3 inch shells run fine on the light setting.
What choke tubes fit the TriStar Viper Max?
It's threaded for the Beretta/Benelli Mobil pattern, one of the most common choke systems out there, so aftermarket tubes from Carlson's, Briley, and others are easy to find. Four tubes come in the box: Skeet, Improved Cylinder, Modified, and Full. That covers everything from clays to decoying ducks to a tight turkey setup.
Is the Viper Max a good waterfowl gun?
That's exactly what it was built for. The 3.5 inch chamber handles heavy goose and duck loads, the chrome-lined barrel and chamber shrug off wet conditions, and the Bronze Cerakote with Mossy Oak Shadow Grass Blades camo blends into marsh cover. The gas system and beefy recoil pad also tame magnum loads better than most inertia guns in this class.
Who makes the TriStar Viper Max and what's the warranty?
TriStar Arms is based in Missouri and imports the Viper Max from Turkey, where it's built by Armsan, a maker with a solid track record on gas guns. TriStar backs it with a five year warranty. The brand has spent over two decades building a reputation for reliable, value-priced shotguns in the US market.



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