29101 Wolff S&W K, L & N Frame Multi Model Standard Power Rib Mainspring M&P Shield M2.0 ✓ Direct replacement for worn

✓ Direct replacement for worn or damaged hand assemblies

securing it in place within the frame

which prevents the firearm from firing when the magazine is removed

This service pak contains 12 precision-engineered Wolff springs:

Model 640 -

29101 Wolff S&W K, L & N Frame Multi Model Standard Power Rib Mainspring M&P Shield M2.0 ✓ Direct replacement for wornPart# 29101 Wolff Precision Gunsprings for Smith & Wesson Revolver Multi Model Standard Power Rib Mainspring Type 1, Pak of 1 K Frame Models: 10, 12, 13, 14, 15, 16, 17, 18, 19, 65, 66, 67, 617, 648 L Frame Models: 581, 586, 681, 686, 696 N Frame Models: 24, 25, 27, 28, 29, 57, 610, 624, 625, 627, 629, 657 Type 1 Factory Standard Power Rib Mainspring only This spring has a unique variable power rib back design. It improves the smoothness and