Smith & Wesson Model 66 Combat Magnum 2.75in .357 Mag 6rd

The Smith & Wesson Model 66 Combat Magnum 2.75in .357 Mag 6rd is a stainless-steel K-frame revolver built for shooters who demand reliability in a compact package. Chambered for .357 Magnum (and .38 Special), this six-shot wheelgun pairs a 2.75-inch two-piece barrel with an adjustable red ramp front sight and a drilled-and-tapped frame for optics mounting.

Manufacturer	Smith & Wesson
Model	Model 66 Combat Magnum
Material	Stainless steel (K-frame) per manufacturer specs
Compatibility	.357 Magnum / .38 Special
Finish	Satin stainless
Weight	30.5 oz (unloaded) per manufacturer specs
Condition	New

Key Features

• 2.75-inch two-piece barrel — WHY IT MATTERS: Shorter than the classic 4-inch, this barrel balances concealability with enough sight radius for accurate shooting. The two-piece design improves rigidity and simplifies barrel replacement if needed.
• Red ramp front sight with adjustable rear — WHY IT MATTERS: The red ramp grabs light for fast target acquisition, while the fully adjustable rear lets you dial in elevation and windage. Perfect for switching between .357 and .38 Special loads without losing zero.
• Drilled-and-tapped frame — WHY IT MATTERS: You can mount a red dot or reflex sight directly without sending the gun to a machinist. That’s a huge plus for collectors who want to modernize without altering the revolver’s integrity.
• Full-length extractor rod — WHY IT MATTERS: Ejects spent cases completely in one smooth stroke. No half-empties or rim-jams, even after a hot .357 cylinder dump. Reloads stay fast when it counts.
• K-frame stainless steel construction — WHY IT MATTERS: The K-frame is the Goldilocks size—lighter than N-frames for carry, stronger than J-frames for magnum loads. Stainless resists rust and holster wear, so it stays looking good for decades.

Who It’s For

This revolver is for the collector who appreciates the Combat Magnum lineage—the Model 66 was the stainless sibling to the legendary Model 19. It’s also for the shooter who wants a do-it-all wheelgun: range toy, trail gun, and home-defense piece in one. If you’re a gun-show regular who loves stainless Smiths, this 2.75-inch variant is a rare find.

Pros / Cons

• Pro: Optics-ready from the factory—no gunsmith needed for red dots.
• Pro: Shoots both .357 and .38 Special with excellent accuracy.
• Con: The 2.75-inch barrel produces more muzzle flash with .357 loads than a 4-inch version. Per Smith & Wesson specs, velocity drops about 50–75 fps compared to a 4-inch barrel, but it still delivers magnum performance.
• Pro: Satin stainless finish is low-maintenance and hides scratches better than polished steel.
• Con: Cylinder gap is tighter than older models—some heavy .357 handloads may cause binding after extended strings. Keep it clean.

Comparison: Model 66 vs. Ruger GP100 vs. Colt Python

Feature	Smith & Wesson Model 66 (2.75in)	Ruger GP100 (3in)	Colt Python (3in)
Frame Material	Stainless steel (K-frame)	Stainless steel	Stainless steel
Weight	30.5 oz	36 oz	40 oz
Capacity	6 rounds	6 rounds	6 rounds
Optics Ready	Yes (drilled/tapped)	No	No
Trigger (DA/SA)	9.5 lb DA / 3.5 lb SA	10 lb DA / 4.5 lb SA	8 lb DA / 3.5 lb SA
MSRP	$987.50	$929	$1,499

The Model 66 splits the difference: lighter than the Ruger GP100, cheaper than the Colt Python, and the only one with factory optics mounting. Per industry data, Smith & Wesson holds roughly 35% of the U.S. revolver market, making the Model 66 a proven choice among collectors.

FAQ

Does this revolver come with a box and papers?

Yes, the Smith & Wesson Model 66 Combat Magnum ships in a factory hard case with the manual, lock, and warranty card. Some dealers may include a cable lock per state regulations.

Can I mount a red dot without an adapter plate?

Yes, the frame is drilled and tapped for standard optics mounts. You’ll need a specific base plate for your dot (e.g., Trijicon RMR, Shield RMS). No gunsmithing required—just screws and a torque wrench.

Is the 2.75-inch barrel accurate enough for target shooting?

Absolutely. The red ramp front sight and adjustable rear give you precision out to 25 yards. Expect 2–3 inch groups with quality .38 Special wadcutters. The shorter barrel just means less velocity, not less accuracy.

Does this model have a lock (ILS)?

Yes, it includes the internal lock system (ILS) found on modern Smith & Wesson revolvers. Some collectors remove it; others leave it for compliance. The lock is discreet and doesn’t affect function.

What holsters fit the 2.75-inch barrel?

Most holsters designed for the 2.5- or 3-inch K-frame Smiths will work. Brands like Simply Rugged, Kramer, and Galco offer leather and Kydex options. Check the barrel length before ordering.

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Last updated: April 2026