Wolff XP Magazine Spring +10% Smith & Wesson 4013 4053 .40 S&W Compact Pistols 76771 model 12 airweight Serial # B125533

Serial # B125533

or damaged swivel results in light hammer strikes

56" length

same reliable trigger-to-cylinder linkage

Wolff XP Magazine Spring +10% Smith & Wesson 4013 4053 .40 S&W Compact Pistols 76771 model 12 airweight Serial # B125533Wolff XP Magazine Spring +10% Smith & Wesson 4013 4053 . 40 S&W Compact Pistols Part Number: 76771 Condition: Factory New Brand: Wolff Gunsprings The Wolff XP Magazine Spring delivers +10% extra power over the factory standard spring, providing improved feeding reliability and consistent magazine tension for Smith & Wesson 3rd Generation . 40 S&W compact pistols. Precision wound in the USA to exact specifications. Important: Not for use in 4013 TSW 9