Smith & Wesson Model 66-3 Combat Magnum .357 Magnum Revolver, 2.5-Inch Stainless, Pre-Lock, Adjustable Sights
This Smith & Wesson Model 66-3 Combat Magnum is a stainless, U.S.-made .357 Magnum revolver with a 2.5-inch barrel and pre-lock configuration. It features the 66-3 engineering update, adjustable sights with a high-visibility front insert, and a round-butt frame fitted with aftermarket checkered black rubber grips. A practical accessory set is included, with multiple speedloaders, holders, and two leather holsters.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are markings consistent with previous handling and signs of use. The bore is bright and clean. Refer to the photos for a detailed view.
What’s Included
- Set of 5 revolver speedloaders
- Set of 5 belt-mounted speedloader holders/pouches (mix of nylon and polymer)
- Two leather belt holsters (one black, one brown)
The Model 66-3 is the stainless Combat Magnum variant chambered in .357 Magnum. This example pairs a 2.5-inch stainless barrel with a short underlug and ejector-rod shroud, balancing quick handling with durable construction. The barrel rollmark confirms its .357 Magnum chambering.
It is a pre-lock configuration with a round-butt grip frame and a serrated topstrap. The 66-3 engineering change incorporates an updated yoke-retention system and related internal updates associated with this era of production. Model 66 legacy production concluded in 2005.
The action is double-action/single-action with a smooth-faced trigger and an exposed hammer featuring a checkered spur. The cylinder holds six rounds. Frame, cylinder, and barrel are all stainless steel with a brushed stainless finish.
Sighting is precise and adaptable, with a ramp front sight that carries a red/orange insert and a fully adjustable rear sight with a white-outline notch. The revolver wears aftermarket checkered black rubber grips with gold-tone medallions for a secure hold.
Built in the United States, this full-size Combat Magnum presents a clean, bright bore, and its stainless construction and practical sighting system make it a capable .357 Magnum revolver with desirable 66-3 features.