Does the Holosun 509T fit the GLOCK 17 / 19 / 45 Gen6 (ORS)?
No: the slide is not cut for the Holosun 509T footprint, and no plate listed here bridges it.
No known fit
Enclosed emitter
Nothing in this database bridges the GLOCK Gen6 ORS interface to the Holosun 509T pattern. Its own world. Almost always mounted on a dedicated 509T plate; steel plates are the common recommendation. A custom plate or a re-mill would be the only route — check with a plate maker before assuming it can't be done.
Plates made for itTrijicon RMR, C-More RTS2 / STS2, Leupold DeltaPoint Pro
How this slide mounts an opticReplaces MOS on Gen6. Polymer spacer plates screw the optic directly into the slide, so the optic sits lower and there is no metal plate to work loose. Early field reports include optics rotating on the polymer without visible witness-mark movement — check zero often and re-torque on a schedule.
About this opticTitanium; duty-oriented. Steel plates recommended.
What fits the GLOCK 17 / 19 / 45 Gen6 (ORS) instead
28 of the 75 optics tracked here mount to it. The cheapest ways in:
Something on this page wrong?Say what it should be. Corrections from someone who owns the pistol are why
this is worth more than a spec sheet — and nothing here changes without a source, so bring one.