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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
and 20lb variants
ISMI rods are machined from stainless steel and utilize a button head screw to retain the spring when the assembly is out of the pistol
Designed for use with MagPul and most mil-spec followers
This 11coil mag spring is for use in standard capacity 17/22 models and will work with most plus 1 and 2 extensions
Long screws for stacking will be included with purchase of 2 or more sets
2011 Magazine Spring 140MM Sig and 20lb variantsManufactured from Chrome Silicon alloy these springs are designed to take less initial set to enable a more stable load and increased service life. This 11coil spring is meant for use in STI SVI magazines up to 140mm.