The Holosun KPLT-507C is a genuine Holosun adapter plate that lets a K footprint optic sit on a pistol slide already machined for the 507C or Trijicon RMR pattern.
A K footprint sight is narrower than an RMR one, so it cannot simply be dropped into a larger cut. This plate is the piece of metal that bridges the gap, and both sets of screws come with it.
It is a hard anodised plate cut to Holosun's own tolerances, drilled underneath for the 507C and RMR screw pattern and on top for the K pattern used by the 407K, 507K, EPS and EPS Carry. Plate-to-slide and optic-to-plate screws are both supplied, so nothing else has to be sourced before the optic can go on.
This is the part to reach for when a slide has already been cut for a full-size sight and the optic you want to run is one of the small enclosed or open K series bodies — a build on an RMR-cut host, or moving a K series sight between guns without paying to have another slide machined. Two things it is not: it does not adapt RMR footprint optics such as the 507C or 407C themselves, and it does not fit the 509 rear-lug pattern. Holosun publish no weight or dimensions for the plate.
Why shooters choose the KPLT-507C
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Optic side — Holosun K footprint, the RMSc pattern used by the 407K, 507K, EPS and EPS Carry
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Host side — pistol slides cut for the 507C or Trijicon RMR footprint
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Hardware — plate-to-slide and optic-to-plate screws both supplied
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Finish — hard anodised
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Build — genuine Holosun part, machined to Holosun's own tolerances
What the KPLT-507C fits
It goes on any slide already cut for the 507C or RMR pattern and carries a K footprint optic above it. Other hosts take their own plate in the same family — the Glock MOS 9mm, the FN 509 and the CZ P10 C versions.
Specifications
| Type |
Optic adapter plate |
| Optic Footprint |
Holosun K footprint / RMSc pattern (407K, 507K, EPS, EPS Carry) |
| Host Cut |
507C / Trijicon RMR footprint |
| Finish |
Hard anodised |
| Hardware |
Plate-to-slide and optic-to-plate screws included |
| Brand |
Holosun |
| MPN |
KPLT-507C |
Get the plate right and a small optic sits square and low on a slide that was cut for a larger one. Order the KPLT-507C today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Optic Mounts, KPLT for Glock MOS 9mm or browse all Holosun.
