Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round 22lr Part# 10179F | Genuine Smith

Part# 10179F | Genuine Smith & Wesson factory replacement part for the K Frame Model 10-7 revolver chambered in

0 Compact Slide (Part# 3002622)

and detents that provide positive engagement and tactile feedback

and 19 LB springs to find the perfect balance of reliable ignition and smooth trigger pull for your specific pistol and ammunition

Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round 22lr Part# 10179F | Genuine SmithWolff Extra Power Magazine Spring for S&W M&P Shield . 40 S&W Part Number: 78971 Enhance your Smith & Wesson M&P Shield . 40 S&W's magazine reliability with this premium Wolff +5% extra power magazine spring. Designed to fit both 6 round and 7 round Shield . 40 magazines, this spring delivers improved feeding and consistent performance shot after shot. IMPORTANT COMPATIBILITY NOTE: This spring is designed for the original M&P Shield . 40 S&W (1. 0 and