Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971

Smith & Wesson M&P Shield .40 S&W Magazine Spring +5% Extra Power - Wolff

$12.99
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Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
  • Smith & Wesson Wolff +5% Extra Power Magazine Spring for Smith & Wesson M&P Shield .40 S&W 6-Round & 7-Round Part 000078971
Smith & Wesson M&P Shield .40 S&W Magazine Spring +5% Extra Power - Wolff

Smith & Wesson M&P Shield .40 S&W Magazine Spring +5% Extra Power - Wolff

$12.99

Smith & Wesson M&P Shield .40 S&W Magazine Spring +5% Extra Power — Wolff

Part# 78971 | Manufacturer: Wolff Gunspringmakers | Made in USA | Factory New

Wolff +5% extra power magazine spring for the Smith & Wesson M&P Shield .40 S&W. Fits both 6-round and 7-round Shield .40 magazines. Improves feeding reliability over the factory spring.

Part Details

  • Part Number: 78971
  • Condition: Factory New
  • Spring Power: +5% Extra Power
  • Caliber: .40 S&W
  • Fits Magazines: 6-round and 7-round Shield .40 magazines
  • Manufacturer: Wolff Gunspringmakers (USA)

Compatibility Notes

  • Fits M&P Shield .40 S&W (1.0) and Shield .40 S&W M2.0 — both 6-round and 7-round magazines
  • ⚠️ Not compatible with M&P Shield Plus, Shield EZ, or aftermarket extended magazines — these use different magazine designs
  • Designed for OEM S&W Shield .40 magazines; compatibility with aftermarket magazines cannot be guaranteed

Installation

Depress the base plate locking tab and slide off. Remove follower and existing spring. Insert Wolff spring with smaller coils at bottom, replace follower and base plate, and function test. Ensure magazine is empty before disassembly.

About Us

USA Guns And Gear sells Smith & Wesson pistol and revolver parts — new, used, new old stock, and refurbished. Contact us at sales@usagunsandgear.com or call 770-544-8075 for all your S&W parts needs.

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