Holosun 507K X2 footprint and mounting: an open-emitter reflex cut to the Holosun K (modified RMSc) pattern. Which adapter plate or mount fits it, and the optics it shares a footprint with.
Updated 05 September 2026.
Holosun 507K X2: footprint and what mount fits it
The Holosun 507K X2 is an open-emitter reflex on the Holosun K (modified RMSc) footprint. It mounts to pistol slide cut or an adapter plate, so buy the plate or mount cut for the Holosun K (modified RMSc) pattern.
Footprint plate, not to scale
DesignationHolosun K (modified RMSc)
Red-dot footprintMake
Holosun
Model
507K X2
Footprint
Holosun K (modified RMSc)
Optic type
open-emitter reflex
Mounts to
pistol slide cut or an adapter plate
Shares its footprint with
Plates and mounts for the Holosun 507K X2
Shop Holosun K (modified RMSc) adapter plate on AmazonaffiliateFind Holosun K (modified RMSc) adapter plate on eBayaffiliateShop Holosun K (modified RMSc) Picatinny mount on AmazonaffiliateFind Holosun K (modified RMSc) Picatinny mount on eBayaffiliate
Mount this optic
- ›Holosun K (modified RMSc) footprintthe mounting pattern
- ›How this footprint reaches a rail or slidethe fit
- ›Red-dot footprints explainedmatch a dot to a cut
Questions and answers
What is the make of the Holosun 507K X2?
Holosun
What is the model of the Holosun 507K X2?
507K X2
What is the footprint of the Holosun 507K X2?
Holosun K (modified RMSc)
What is the optic type of the Holosun 507K X2?
open-emitter reflex