Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round 22lr Specifications: Right hand thread (turns

Specifications: Right hand thread (turns clockwise to tighten) One-hole configuration Factory OEM specifications Essential for reliable extraction Compatibility: Smith & Wesson K Frame M&P Victory Model WWII revolvers chambered in

M&P 40 Full Size (M1

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

and detents that provide positive engagement and tactile feedback

Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round 22lr Specifications: Right hand thread (turnsWolff 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