Holosun 507C Picatinny Mount for RMR Footprint Optics
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The Holosun 507C-PIC-MOUNT is Holosun's own Picatinny rail mount for its RMR-footprint pistol optics — the 407C, 507C, 407COMP, 507COMP and 508T.
It takes a sight designed to live on a pistol slide and gives it a rail to live on instead, which is how most of these optics end up on a shotgun rib or a rimfire in this country.
Holosun machine it from aluminium with a black anodised finish, cut with the bosses and screw pattern of the full-size RMR footprint. It clamps to any rail section cut to MIL-STD-1913. Holosun's own box contents list the mount by itself, so check what screws came with your optic before the mount arrives.
On a rib-railed shotgun, a pistol-calibre carbine or a railed rimfire it puts a bright, parallax-free dot exactly where a proper rifle optic would sit, for a fraction of the bulk. The limitation is straightforward and worth repeating: this is the large RMR pattern only. A 507K, 407K or any other K-footprint sight uses the smaller RMSc pattern and will not bolt to it.
Picatinny rail on a shotgun rib, a carbine receiver, a rimfire or an airsoft host, carrying an RMR-footprint Holosun. Enclosed 509-series optics use a different pattern and need the 509T Picatinny Mount at 1.63in lower 1/3, while pistol slides are covered by the plate range, such as the 509 plate for 507C and RMR-cut slides. The optics themselves are in RMR Footprint Red Dot Sights.
| Type | Picatinny optic mount |
|---|---|
| Optic footprint | RMR pattern (407C, 507C, 407COMP, 507COMP, 508T) |
| Rail | Picatinny, MIL-STD-1913 |
| Material | Aluminium |
| Finish | Black anodised |
| MPN | 507C-PIC-MOUNT |
A small aluminium part that doubles the number of guns one optic can serve. Order the 507C-PIC-MOUNT 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, 509T Picatinny Mount 1.63in or browse all Holosun.
| Brand | Holosun |
|---|---|
| Part no. | 507CPICMOUNT |
| Category | Optic Mount |
| Barcode | 810047071532 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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