New from S&J Hardware, these magazine springs have a previously unheard of lifespan of 600,000+ cycles (yep, 600 THOUSAND). What does this mean? That your shotgun will wear out long before this spring does. On a 7 round capacity shotgun, this would mean you would have to load and fire 4.2 MILLION rounds before the spring would need replaced.
S&J Hardware magazine spring for most 12ga applications with 6-7 shot capacity magazines. These springs offer approximately 10% extra power over original factory springs to improve feeding. These springs offer extreme durability for duty/HD use.
For most 12ga pump and semi shotguns
-Specially heat-treated chrome-silcon
-Made in Canada