Smith & Wesson Mainspring 31, 32, 34, 36, 37, 38, 42, 49, 60, 63, 317LS, 331, 332, 337, 337PD, 340 LS, 340PD, 342, 342PD, 360, 360PD, 431PD, 432PD, 442, 631, 632, 637, 638, 640, 642, 649

Smith & Wesson

Smith & Wesson Mainspring 31, 32, 34, 36, 37, 38, 42, 49, 60, 63, 317LS, 331, 332, 337, 337PD, 340 LS, 340PD, 342, 342PD, 360, 360PD, 431PD, 432PD, 442, 631, 632, 637, 638, 640, 642, 649

Best price $4.99 at MidwayUSA

View at MidwayUSA

Category
Accessory
MPN
071040000
UPC
00197706416634

Price comparison

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Price history

    Current best $4.99All-time low $4.52 (Apr 29, 2025)Highest $6.49