Description
The 3-5-7 Magnum Series is Smith & Wesson's way of celebrating the cartridge that made the company famous, and the numbers in the name refer to the three barrel lengths it comes in. This 7-inch version, model 150855, is the one that turns heads. It takes the proven 686 Plus platform, adds an unfluted cylinder for a clean, muscular look, and dresses it up with custom black and silver wood grips featuring a 357 medallion. The whole package wears a satin stainless finish that ties it together nicely.
Why the 686 Plus L-Frame Still Rules the .357 World
The 686 earned its reputation the hard way, riding in duty holsters and racking up range time for decades. The L-frame was purpose-built to feed a steady diet of full-power magnum loads without beating itself apart, with more steel in the cylinder and forcing cone than the older K-frames while keeping a grip size most hands find comfortable. The Plus designation means you get seven rounds instead of six, and it happily runs .38 Special and .38 +P when you want cheaper, softer practice sessions.
What the 7-Inch Barrel Brings to the Table
At 48.2 ounces and 12.3 inches overall, this is a big revolver, and that works in your favor. The extra weight up front soaks up recoil and settles the sights, while the long sight radius between the red ramp front and adjustable white outline rear makes precise shooting at distance far easier than with shorter barrels. That extra tube also wrings more velocity out of magnum loads, which matters if you plan on taking it after deer or hogs. The smooth single and double action trigger the 686 line is known for rounds out the package.
A 686 Plus 3-5-7 Worth Holding Onto
Smith & Wesson pitches this series as a collector piece, and the unfluted cylinder and dressed-up grips back that up. But this one is no safe queen by design. It is a legitimate hunting and target revolver that just happens to look fantastic doing it, all backed by the S&W lifetime service policy.
Key Specifications
- Manufacturer: Smith & Wesson
- Model: 686 Plus 3-5-7 Magnum Series
- Manufacturer Part Number: 150855
- UPC: 022188145151
- Caliber: .357 Magnum / .38 S&W Special +P
- Capacity: 7 Rounds
- Action: Single/Double Action
- Barrel Length: 7 in
- Overall Length: 12.3 in
- Weight: 48.2 oz
- Frame: Stainless Steel L-Frame
- Finish: Satin Stainless
- Cylinder: Unfluted Stainless Steel
- Front Sight: Red Ramp
- Rear Sight: Adjustable White Outline
- Grips: Black/Silver "357" Custom Wood
What’s Included
- Smith & Wesson 686 Plus 3-5-7 Magnum revolver
- Black/silver "357" custom wood grips (installed)
- Owner's manual
- Factory box
Frequently Asked Questions
Can the 686 Plus 3-5-7 Magnum shoot .38 Special?
Yes. Like every .357 Magnum revolver, it also runs .38 Special and .38 Special +P without any modification. That makes practice sessions a lot easier on your hands and your wallet, and you can save the full-house magnum loads for hunting or when you want the extra punch.
Is the 7-inch barrel good for hunting?
It is one of the better .357 hunting setups you can buy off the shelf. The long barrel squeezes more velocity out of magnum loads and gives you a generous sight radius for accurate shots at field distances. Paired with the adjustable rear sight, it is well suited for deer and hog hunting at reasonable handgun ranges.
What makes the 3-5-7 Magnum Series different from a standard 686 Plus?
The 3-5-7 Series is a dressed-up version of the 686 Plus with an unfluted cylinder and custom black and silver wood grips featuring a 357 medallion. It comes in 3, 5, and 7 inch barrel lengths, which is where the name comes from. Notably, the 7-inch barrel is exclusive to this series, so you will not find it on the standard 686 lineup.
How heavy is the 686 Plus 3-5-7 with the 7-inch barrel, and does it help with recoil?
It weighs 48.2 ounces empty, which is right at three pounds. That heft is a real benefit with magnum loads, since the full-lug barrel puts weight out front where it tames muzzle rise and keeps the sights steady. Most people find full-power .357 surprisingly manageable in this gun.




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