Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Chrome Silicon Wire For Superior Performance & Durability

Wound with high tensile, chrome silicon wire that’s shot peened, heat treated, then stress-relieved for the longest service life possible, without cracking or failure. Fits 170mm, STI, high capacity magazine tubes, 13 coils.


1911, Issue:11, Page:029
Big Book Catalog, Issue:67, Page:122
New Product Supplement, Issue:513, Page:000
Personal Protection, Issue:01, Page:026
Sinclair, Issue:1A, Page:027
SPECS: Chrome silicon steel wire.

ISMI - STI 170MM HIGH CAPACITY PREMIUM MAGAZINE SPRINGS