A dovetail will have basically the same style of cut as the normal rear sight. Staked would not have that cut. I do not think they have the same set up at the Glock.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)