**THIS PLATE IS INCOMPATIBLE WITH THE NEWER SIG-LOK CUT. CLICK HERE TO SEE PICTURE.**
This filler plate does not require any additional screws. It is held in place with the RDS and it’s mounting screws.
The C&H Precision plates are designed, manufactured and shipped from our small family owned business in Coastal Georgia. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to our customers.
SPECIFICATION:
Material: Plates are made from 6061 aluminum. All mounting hardware is Stainless Steel
Finish: Plates are MIL-SPEC Type III Hard Anodized – Black
INCLUDED:
Qty 1 – Optic Plate
Qty 3 – 6-40 x .3125 M3H Holosun 407C / 507C Optic Mounting Screws
Qty 3 – 6-40 x .380 M3H Trijicon RMR / RMR HD / SRO Optic Mounting Screws
Qty 3 – 6-40 x .460 M3H CHPWS COMP / EDC XL/ COMP MAX Optic Mounting Screws
**Trijicon RCR**
The RCR Optic comes with Trijicon screws that are “Patented”. You must use the screws they provide you. C&H will not make new screws for this optic / plate combo. It is the responsibly of the consumer to check fitment of the provided screws for length. The screws may have to be slightly modified or shortened in order to ensure proper fitment.





Dennis Ulick –
Quality made product and outstanding customer service. The adaptor plate fit perfectly in my Sig P226 Pro Cut slide leaving a perfect fit for a Holosun 507c optic. Use the short fine threaded screws that come with the mounting plate when installing your optic.
spredvan –
I used this filler plate to mount a Holosun HS507C X2 to my P229 Legion SAO, with optic cut.
Overall, I am very pleased with the mount The plate is very thin and I really like the forward posts that provide additional support and take the force off the mounting screws.
However, there is a small gap at the rear, about the same width as the thickness of the plate; maybe slightly narrower.
It would be nice if the plate had a raised edge at the rear to fill this gap, but maybe this is not possible, in order to accommodate a variety of pistol applications.
The forward posts are very effective in locking the optic in place to prevent any movement, so I’m not concerned about the small rear gap.
ciaramellam4748 –
I tried to find some way to mount my trijicon rmr to my sig p226 sao legion, but had no luck. This adapter plate finally became available again, and I grabbed one. My rmr sits solidly on the slide now….range time in a few days to abuse it as it should be done.
robear30 –
Excellent product and excellent support. I was referred to C+H by Holosun, but didn’t see my model (Sig P220 Legion .45 optics-ready, factory cut). I messaged their service team and Guru Thomas (self proclaimed) looked at my slide pic and agreed it was Romeo1-pro, DPP, RMR ready. I was directed to this item, and ordered it and the Holosun 507comp. Both arrived and I watched the install vid, the plate dropped right in and the supplied screws locked yhe 507c down. I sent some pics back to Thomas to add the P220 to the fitment of this plate.
Perfect, simple item that does exactly what it claims. Lugs for the optic, filler panel for the gap, precise machining, and also seals the bottom of the sight. Worth every penny, and they’ll promptly help you too.
Jeffrey Sourbeer –
Fit a Trijicon SRO to my new P320 Spectre Comp using the short screws that come with the Trijicon SRO. Perfect fit. Front spacer and knobs/pylons on the plate help absorb recoil force that would otherwise go solely onto the screws.