Smith & Wesson J Frame Model 640 .38 Special Main Spring Stirrup & Swivel Assembly - Stainless Steel 640141 69 357 Magnum Verify new-style bolt

357 Magnum Verify new-style bolt spring required Note: This is a new-style bolt spring

Verify your model number and dash number before ordering — old and new style cylinder stops are not interchangeable

Using original equipment manufacturer (OEM) parts preserves the value of your firearm and guarantees materials meet the original hardness and durability specifications required for rimfire operation

All threads are intact and functional

Smith & Wesson J Frame Model 640 .38 Special Main Spring Stirrup & Swivel Assembly - Stainless Steel 640141 69 357 Magnum Verify new-style boltPremium Replacement Main Spring Assembly for S&W Model 640 This genuine Smith & Wesson main spring, stirrup, and swivel assembly is designed specifically for J Frame Model 640 revolvers chambered in . 38 Special. Crafted from durable stainless steel, this old style component ensures reliable trigger function and consistent performance. Key Features: Genuine S&W Part: Factory component ensures perfect fit and function Stainless Steel Construction: