Description
The Holosun K-RMR Adapter Plate (407K/507K to RMR) is a low-profile adapter plate that lets Holosun K-footprint optics (407K, 507K) mount to a slide cut for the RMR / 507C footprint. For fitting a 407K/507K to a pistol with an RMR-pattern slide cut. Specifications below are from the manufacturer’s published data.
Key specifications
- Compatibility: Holosun 407K and 507K series optics; slides cut for HS507C / RMR footprint
- Material: Hard-anodised aluminium
- Rail/Footprint: Converts Holosun K footprint to the RMR / 507C footprint
- In the box: Adapter plate with installation hardware
Frequently asked questions
Which optics fit this plate?
Holosun K-footprint optics such as the 407K X2 and 507K X2
Which slide cut does it need?
An RMR / Holosun 507C footprint slide cut
Does it come with screws?
holosun.com states installation hardware is included.
3 Gun Tactical, Tingalpa QLD — Licensed Firearms Dealer 50001578. Optics, mounts and accessories can be purchased without a firearms licence and are shipped Australia-wide. Source: Holosun.








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