Smith & Wesson Model 640-1 Centennial .357 Magnum DAO J-Frame, 2.125 in Heavy Barrel, Brushed Stainless, Pre-Lock, 5-Shot
This Smith & Wesson Model 640-1 Centennial is a pre-lock, enclosed-hammer DAO J-frame engineered for .357 Magnum. It features a 2.125 in heavy stainless barrel with an underlug and shrouded ejector rod, a five-shot fluted cylinder, and a uniform brushed stainless finish. Fixed sights and compact boot-length grips round out this micro-size revolver.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Handling marks are minimal from prior use. The bore presents a bright, reflective interior consistent with the stated condition.
What’s Included
- Suede leather inside-the-waistband holster with metal belt clip
The 640-1 is part of S&W’s Centennial series with an enclosed hammer and double-action-only operation. This internal-hammer J-frame design is purpose-built for snag-free carry while maintaining consistent DAO trigger operation.
Constructed from stainless steel, the frame, barrel, and cylinder wear a brushed stainless finish for a clean, uniform appearance. The five-shot fluted cylinder is chambered for .357 Magnum and operates within the compact micro-size J-frame format.
The 2.125 in heavy-profile stainless barrel includes an underlug that shrouds a short, knurled ejector rod. Fixed sights consist of an integral serrated ramp front and a topstrap groove rear for a simple, durable sight picture.
This pre-lock configuration has no internal lock, and the 640-1 dash variant is stamped in the yoke. Black rubber boot-length grips with finger grooves and textured panels provide a compact profile with positive hand placement. Made in the United States.




