Conventional sighting arrangement of a "initially-technology" Glock seventeen The 1st Glock pistols sent to America in 1985 failed to satisfy the BATF import "factors" prerequisite, requiring Glock to rapidly establish an adjustable rear sight which allowed to the pistols being imported and sold commercially in 1986. It is thought that https://edwinvjzgm.blogzet.com/glock-switch-no-further-a-mystery-36488164