Skip to main content
We may get paid by partner for deals, including promoted items

Menu

Trending
Top Brands Palmetto State ArmoryHot Yeti CoolerDeal NatchezDeal SitkaDeal 5.11Sale Winter Clearance Amazon Pickleball Sale Amazon FitnessHot Stores
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 by Smith & Wesson - Handgun Frames

Product Description

Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts. Some parts may require installation by a qualified gunsmith.

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

at MidwayUSA
Browse all MidwayUSA deals
$5.12
In Stock at MidwayUSA
Price verified today
Buy Now at MidwayUSA
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Category Handgun Frames
Brand Smith & Wesson
MPN 071040000
Smith & Wesson

More from Smith & Wesson

MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson J-Frame 340, 340PD, 360, 360PD, X-Frame 500 Center Pin Smith & Wesson J-Frame 340, 340PD, 360, 360PD, X-Frame 500 Center Pin View Details
$19.99 $23.99
17% off
Buy Now · $19.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Sold Out
Smith & Wesson Magazine Release Nut S&W 39, 439, 539 Blue Smith & Wesson Magazine Release Nut S&W 39, 439, 539 Blue View Details
$4.99
Buy Now · $4.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Sold Out
Smith & Wesson Magazine Release Nut S&W CS40C, CS40D, CS40S, CS45C, CS45D, CS45S, CS9C, CS9D, CS9S, 410, 457, 908, 909, 910 Smith & Wesson Magazine Release Nut S&W CS40C, CS40D, CS40S, CS45C, CS45D, CS45S, CS9C, CS9D, CS9S, 410, 457, 908, 909, 910 View Details
$5.29
Buy Now · $5.29
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson 1086, 4506, 4546, 4586, 645, 745 Sideplate Assembly Smith & Wesson 1086, 4506, 4546, 4586, 645, 745 Sideplate Assembly View Details
$5.79
Buy Now · $5.79
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson 60-3, 317, 332, 337, 340, 342, 360, 637-1, 638-2, 640, 642-1 Yoke Screw Assembly Stainless Steel Glass Bead Smith & Wesson 60-3, 317, 332, 337, 340, 342, 360, 637-1, 638-2, 640, 642-1 Yoke Screw Assembly Stainless Steel Glass Bead View Details
$8.00
Buy Now · $8.00
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson Magazine Release Nut S&W 3904, 3914, 3914DAO, 3944, 3954, 4004, 4054, 411, 4505, 4596, 59, 459, 559, 5904, 5924, 5943SSV, 5944, 5967, 915, SUPER9, 6904, 6924, 6944 Blue Smith & Wesson Magazine Release Nut S&W 3904, 3914, 3914DAO, 3944, 3954, 4004, 4054, 411, 4505, 4596, 59, 459, 559, 5904, 5924, 5943SSV, 5944, 5967, 915, SUPER9, 6904, 6924, 6944 Blue View Details
$13.99
Buy Now · $13.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson Mainspring 4003TSW, 4006TSW, 4043TSW, 4046TSW, 4553TSW, 4563TSW, 4566TSW, 4583TSW, 4586TSW, 5903TSW, 5906TSW, 5943TSW, 1006, 1026, 1076, 1086, 39, 3904, 3906, 3944, 3946, 439, 539 Smith & Wesson Mainspring 4003TSW, 4006TSW, 4043TSW, 4046TSW, 4553TSW, 4563TSW, 4566TSW, 4583TSW, 4586TSW, 5903TSW, 5906TSW, 5943TSW, 1006, 1026, 1076, 1086, 39, 3904, 3906, 3944, 3946, 439, 539 View Details
$11.99
Buy Now · $11.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson Mainspring 317, 351PD Smith & Wesson Mainspring 317, 351PD View Details
$4.99
Buy Now · $4.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson 36-2, 37-1, 38-1, 42 Yoke Screw Assembly Nickel Plated Smith & Wesson 36-2, 37-1, 38-1, 42 Yoke Screw Assembly Nickel Plated View Details
$5.29
Buy Now · $5.29
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson K-Frame 18, 66 L-Frame 686 2-1/2" Barrel Center Pin Stainless Steel Smith & Wesson K-Frame 18, 66 L-Frame 686 2-1/2" Barrel Center Pin Stainless Steel View Details
$5.99
Buy Now · $5.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson Magazine Release Nut S&W 3953TSW, 4003TSW, 4006TSW, 4013TSW, 4043TSW, 4513TSW, 4553TSW, 4563TSW, 4566TSW, 4583TSW, 4586TSW, 5903TSW, 5906TSW, 5943TSW,1006, 1026, 1066, 1076, 1086, 3906, Smith & Wesson Magazine Release Nut S&W 3953TSW, 4003TSW, 4006TSW, 4013TSW, 4043TSW, 4513TSW, 4553TSW, 4563TSW, 4566TSW, 4583TSW, 4586TSW, 5903TSW, 5906TSW, 5943TSW,1006, 1026, 1066, 1076, 1086, 3906, View Details
$9.45 $11.99
21% off
Buy Now · $9.45
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson 4003TSW, 4006TSW, 4043TSW, 4043TSW, 4046TSW, 4563TSW, 4566TSW, 4583TSW, 4586TSW, 5903TSW, 5906TSW, 5943TSW, 1006, 1026, 1066, 1076, 1086, 39, 3904, 3906, 3944, 3946, 439 Stirrup Smith & Wesson 4003TSW, 4006TSW, 4043TSW, 4043TSW, 4046TSW, 4563TSW, 4566TSW, 4583TSW, 4586TSW, 5903TSW, 5906TSW, 5943TSW, 1006, 1026, 1066, 1076, 1086, 39, 3904, 3906, 3944, 3946, 439 Stirrup View Details
$6.03 $6.29
4% off
Buy Now · $6.03
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson J-Frame 36, 37, 38, 42, 60, 637, 638, 640, 642, 649, 940 Center Pin Stainless Steel Smith & Wesson J-Frame 36, 37, 38, 42, 60, 637, 638, 640, 642, 649, 940 Center Pin Stainless Steel View Details
$5.69 $5.99
5% off
Buy Now · $5.69
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson J-Frame +P 36-9, 38-3, 40, 42-1, 42, 60-12, 317, 442, 637, 638-2, 640-2, 642-1, 649-4, 351PD Center Pin Glass Bead Stainless Steel Smith & Wesson J-Frame +P 36-9, 38-3, 40, 42-1, 42, 60-12, 317, 442, 637, 638-2, 640-2, 642-1, 649-4, 351PD Center Pin Glass Bead Stainless Steel View Details
$5.99
Buy Now · $5.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson K-Frame 10, 12, 63 2" Barrel Center Pin Stainless Steel Smith & Wesson K-Frame 10, 12, 63 2" Barrel Center Pin Stainless Steel View Details
$5.99
Buy Now · $5.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson X-Frame 460, 500 Center Pin Smith & Wesson X-Frame 460, 500 Center Pin View Details
$5.99
Buy Now · $5.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Sold Out
Smith & Wesson Center Pin S&W N-Frame Model 24, 27, 28, 57, 610, 624, 625Colt, 627, 657 Stainless Steel Smith & Wesson Center Pin S&W N-Frame Model 24, 27, 28, 57, 610, 624, 625Colt, 627, 657 Stainless Steel View Details
$5.99
Buy Now · $5.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Sold Out
Smith & Wesson 64-4, 65, 66-3, 67-2, 242, 296, 386, 396, 460, 500, 610, 617, 619, 620, 624-1, 625, 627, 629-2, 647, 648, 657, 681, 696 Yoke Screw Assembly Stainless Glass Bead Smith & Wesson 64-4, 65, 66-3, 67-2, 242, 296, 386, 396, 460, 500, 610, 617, 619, 620, 624-1, 625, 627, 629-2, 647, 648, 657, 681, 696 Yoke Screw Assembly Stainless Glass Bead View Details
$4.99
Buy Now · $4.99
MidwayUSA
MidwayUSA
Last Updated:
Oct 26, 2026 07:05 AM
Smith & Wesson K, L, N Frame Yoke Screw Assembly Blue Smith & Wesson K, L, N Frame Yoke Screw Assembly Blue View Details
$4.99
Buy Now · $4.99
MidwayUSA