Description
Colt did not just slap a famous name on a new gun here. The Viper builds on the company's modern D-frame revolvers with a half-lug barrel profile that trims weight where you do not need it, landing at a very manageable 26.9 ounces unloaded. That puts it in a sweet spot: heavy enough to soak up magnum recoil better than the airweight snubbies, but light enough that carrying it all day is realistic. The forged stainless steel frame, cylinder, and one-piece barrel give it that classic polished Colt look, and the recessed target crown protects the rifling from dings that can hurt accuracy.
Why the 3-Inch Viper Makes Sense for Carry
A 3-inch barrel is a smart pick for a .357 Magnum. You get noticeably more velocity and less muzzle blast than a 2-inch snub, plus a full-length ejector rod that kicks empties out cleanly for faster reloads. The fixed sights, a serrated black ramp up front and a U-notch in the rear, are snag-free and simple, exactly what you want on a defensive wheelgun. And since it accepts .38 Special, including +P loads, you can train comfortably and cheaply, then load magnums when it counts.
Classic Colt Feel, Modern Build
The checkered American walnut grips give the Viper a look that stands out in a sea of black polymer, and the fit of wood to metal on these has been getting real praise. The action is smooth in double action with a crisp, light single-action break when you thumb back the exposed hammer, and the familiar Colt pull-back cylinder release swings out a six-round cylinder, one more than most small-frame competitors give you.
Who the Colt Viper Fits Best
This one suits the revolver fan who wants a single wheelgun that can do double duty: nightstand and belt, range day and woods walk. It carries easier than a King Cobra Target, hits harder than a .38-only snub, and wears the kind of styling that makes people at the range ask what you are shooting.
Key Specifications
- Manufacturer: Colt
- Model: Viper
- MPN: VIPER-SP3WRR
- UPC: 098289001405
- Caliber: .357 Magnum / .38 Special (+P rated)
- Capacity: 6 rounds
- Action: Double Action / Single Action
- Barrel Length: 3 inches, half-lug, one-piece with recessed target crown
- Twist Rate: 1:14 inch LH, 6 groove
- Frame Material: Forged stainless steel
- Finish: Polished stainless
- Grips: Checkered American walnut
- Sights: Black ramp front, U-notch rear (fixed)
- Overall Length: 8 inches
- Weight (Unloaded): 26.9 oz
- Hammer: Exposed
What’s Included
- Colt Viper .357 Magnum revolver
- Owner's manual
- Cable lock
Frequently Asked Questions
Can the Colt Viper shoot .38 Special ammo?
Yes. Like any revolver chambered in .357 Magnum, the Viper runs .38 Special and .38 Special +P without issue. That makes range sessions a lot more pleasant and affordable, and you can still load full-power magnums for defense or the woods.
How does the Viper compare to the Colt King Cobra?
They share the same modern Colt lineage, but the Viper uses a half-lug barrel that shaves weight and slims the profile for easier carry, while King Cobra Target models run a full underlug. The Viper also wears walnut grips instead of rubber for a more traditional look. Think of the Viper as the carry-oriented middle ground in Colt's snake gun lineup.
Is the 3-inch Colt Viper a good carry size?
It is one of the better balances out there. The 3-inch barrel gives you more velocity and a full-length ejector rod compared to a 2-inch snub, while the half-lug design and 26.9-ounce weight keep it belt-friendly. It is heavier than an alloy J-frame, but that extra steel tames .357 Magnum recoil noticeably.
Does the Colt Viper have adjustable sights?
No, the sights are fixed: a serrated black ramp front and a U-notch rear machined for a clean, snag-free profile. Fixed sights are the standard choice on carry revolvers since there is nothing to knock out of alignment. If you want target-style adjustable sights, look at Colt's King Cobra Target instead.





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