Smith & Wesson Model 66-3 Combat Magnum .357 Magnum, 4 inch, Stainless K-Frame DA/SA Revolver
This Smith & Wesson Model 66-3 Combat Magnum is a stainless K-frame .357 Magnum with a 4 inch heavy barrel and a shrouded ejector rod. It is pre-MIM and pre-internal-lock, and features the dash-3 engineering updates including the radius stud package, revised yoke retention, floating hand, and hammer-nose bushing. Adjustable sights with an orange-insert ramp front, a serrated sighting rib and topstrap, and brushed stainless finish round out a well-sorted, purpose-built revolver.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor handling wear is present. The checkered hardwood target stocks show light use wear. The hammer and trigger display small scratches and scuffing.
What’s Included
- Smith & Wesson Model 66-3 revolver
The Model 66-3 is part of S&W’s Combat Magnum series, built on the stainless K-frame for a balance of strength and carryability. This example uses a 4 inch heavy-profile barrel with the standard K-frame ejector-rod shroud (partial underlug), giving it a steady sight picture and smooth ejection.
Sight configuration is set up for precise adjustment and quick acquisition. It has a ramped front sight with an orange insert and a micrometer-adjustable rear, complemented by a serrated sighting rib and a serrated topstrap to cut glare.
This dash-3 variant incorporates notable internal updates: the radius stud package, revised yoke retention system, a floating hand, and a hammer-nose bushing. It is also pre-MIM and pre-internal-lock, aligning it with traditional S&W construction features valued by many enthusiasts.
The revolver operates in double-action/single-action and carries a smooth trigger face for controlled press. An exposed hammer with a checkered spur aids confident single-action cocking. It wears checkered hardwood target stocks with S&W medallions, and the brushed stainless frame, cylinder, and receiver provide durable, corrosion-resistant service.




