To my recollection there is no safety on the Glock or Sig (excepting the firing pin blocks to prevent drop it discharges) The very term
cocked and locked refers to the 1911, and it is safe to carry that way - despite some mis informed LE agencies, etc who believe otherwise. I was told, a few months back, of an agency who now dis allows Glocks for carry because an officer crammed a loaded one into the tupperware in a packed trunk, when he muscled the trunk shut the Glock went off. Go figure.