Eliminates slide stop and thumb safety failures caused by a broken plunger tube spring. Fits Colt 1911, 1911A1, 1991, Government, MK IV, Gold Cup, Commander (.45, Super .38 and 9mm), Officers .45 cal., and Delta Elite 10mm.
1911, Issue:10, Page:033
Big Book Catalog, Issue:66, Page:122
New Product Supplement, Issue:565, Page:048
Sinclair, Issue:1A, Page:031