recoil springs are manufactured
certified Aerospace specified
materials and ISMI employs ISO 9002 quality control
standards. The springs are wound from heated treated flat wire, shot peened and
for maximum durability making them the
direct replacement for Glock
factory OEM springs.
Large frame (17,22,31 etc) springs have 36-38 coils depending on the spring.
ISMI recoil springs have endured an excess of 100,000 compression
springs include a 12 month
manufactures replacement warranty however
we advise you practice
maintenance and change your recoil spring yearly.
We recommend Lone Wolf Guide Rods for use with this product:
*Recoil spring buffers are not
Buffers reduce slide travel which can have an adverse effect of
reliability. Buffers can break
during firing and render