S&W K Frame Model K38 Pre-Model 15 Bolt, Spring & Plunger .38 Special – Part# 1545

Smith & Wesson K Frame Model K38 Pre-Model 15 Bolt, Spring & Plunger – Old Style

Restore reliable cylinder rotation and lockup on your K38 or Pre-Model 15 with this factory-original bolt, spring, and plunger set. The bolt (cylinder stop bolt) works in conjunction with the cylinder stop to index and lock each chamber in line with the barrel at the moment of firing — a worn or damaged bolt leads to cylinder timing issues and inconsistent lockup. This old-style blue steel three-piece set features the correct 5-screw era design for the K Frame Model K38 (Pre-Model 15) chambered in .38 Special.

• Part Number: 1545
• Fits: Smith & Wesson K Frame Model K38 / Pre-Model 15
• Caliber: .38 Special
• Includes: Bolt, Bolt Spring & Bolt Plunger
• Finish: Blue Steel
• Era: 5-Screw Design (Old Style)
• Condition: Used (factory original)
• Installation: Gunsmith fitting recommended

Factory Replacement Quality

Genuine Smith & Wesson factory parts manufactured to the exact specifications and tolerances of the originals — same dimensions, same cylinder timing geometry, same reliable lockup. No aftermarket substitutes.

About the K38 / Pre-Model 15

The K38 Masterpiece (later designated the Model 15 Combat Masterpiece) is one of the most celebrated K Frame revolvers ever produced. Pre-model revolvers predate the 1957–58 model number system; if your revolver has no model number stamped behind the yoke, contact us with the serial number and we'll confirm compatibility.

Questions? Call or email us — we're happy to help you get the right part the first time.