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 9mm and .40 S&W high capacity magazines, and those with +1 and +2 base pads.
Big Book Catalog, Issue:65, Page:209
New Product Supplement, Issue:513, Page:000
SPECS: Chrome silicon steel wire.