Recoil Spring, for Springfield Prodigy® 4.25" Pistols, ISMI 1911 Commander Flat Wire, 12 lb., by Evolution Gun Works®

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make:
Springfield Armory
model:
Springfield Prodigy 4.25
part:
Recoil Parts
part:
Springs
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Description

ISMI 1911 Commander Flat Wire Recoil Spring 12 lb

Description:

  • This flat wire recoil spring for 1911s FITS commander guns with full length, 1/4" diameter guide rods. EGW also uses this spring in their Springfield 4" 9mm kit. The 12lb spring weight is perfect FOR USE IN 9mm 1911s.
  • ISMI Springs are typically made from silicone chrome instead of 150 year old music wire. Every ISMI spring is heat treated, shot peened & stress relieved to enhance durability, consistency and reliability.
  • EGW springs are made for them by ISMI. ISMI is a contractor of the U.S. government and produces springs used in machine guns with incredibly high cycling rates. Also, the creator of ISMI springs obtained his knowledge from extensive research in the development of springs used in Indy car racing.