THIS PLATE REQUIRES A ROMEO 1 PRO OPTIC READY CUT WITH RMR HOLES, REFER TO THE PICTURES ABOVE TO VERIFY YOUR SLIDE HAS THE CORRECT HOLES AND CUT. IF YOUR SLIDE DOES NOT HAVE RMR / HOLOSUN THREADED HOLES OR NEEDS TO BE UPGRADED TO THE ROMEO 1 PRO CUT, CLICK HERE
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 .380 M3H Trijicon RMR / RMR HD / SRO , Holosun 407C/ 507C 507Comp 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.
DRY-FITTING DISCLAIMER:
At C&H Precision, our products are designed and manufactured to meet tight tolerances. Installation can be affected by variations in your plate, hardware, optic, and firearm tolerances. For safe installation and to prevent potential damage to any component, we advise dry-fitting all parts before a full installation. If any problems arise during this process, please reach out to our Customer Service via our
contact portal.
IRON SIGHTS DISCLAIMER:
When making aftermarket firearm modifications, factory components can often become obsolete, particularly when mounting optics on the slide, whether through direct milling or using a plate. Achieving the correct height for low co-witness iron sights depends on factors such as the firearm type, mounting plate, optic, and slide cut. For assistance in determining the appropriate iron sight height for your specific setup, please contact our Customer Service team through our dedicated
contact portal.
Only logged in customers who have purchased this product may leave a review.
bernardbrondum1 (verified owner) –
First red dot install!
I purchased a sig P320 Full size over a year ago with a Romeo dot installed . Had to learn the switch from iron sites to the dot (still work in progress) liked the combo bot found the Full size a little uncomfortable for all day carry! Because of the modular design I thought I would get purchase parts working toward a p320 compact. Wilson Combat grip, Sig FCU Skeletonized trigger, then came the Slide and barrel. Well I tried to find a slide and barrel that I thought would work as well as my stock p320 does well found this to be a daunting task so I just decided to just go with Sig slide optic ready slide and 3.9 barrel I was going to mount a Holosun 407c Sig site told me I would need an adapter plate so I.ordered that from Sig as well! Later found out it was on back order! But not for long!!! Ordered the plate finally had all parts. The plate from Sig made no sense at all. All that plate would seal off the bottom of the dot and raise it the thickness of the plate! Oh well mounted the dot 48 hrs at the range ready to zero my dot! After an hour of chasing the dot gave up had the range take a look see if he saw anything that I missed! No luck!
Later while field striping for cleaning I found the Holosun dot was loose!!! It had been torqued to 15 inch lbs blue thread lock 48 hrs ago geerrrr! Back to the local gun shop where I shop they didn’t under the adapter plate either so left it off and they re-installed the dot for me! 30 hrs later back at th range seamed a lil better at first still couldn’t zero the dot so I checked it. If you guessed loose again you would be correct! Now way passed frustrated l called Sig spoke to someone there who told me to call C&H Precision! So I did and found out what I had expected I had the wrong adapter plate when infact what I needed was a filler plate. So I placed my order. The person I spoke asked me all the correct questions to make sure I would get the correct parts and all I needed to correctly install the dot! C&H had my parts on their way in 2 and a half days (But oh no Mother Nature was having nothing to do with that! Down here in the deep south in Jan 2025 finally got my parts 2/3/2025 talked to Wes at C&H who was very helpful with what we would do if my parts didn’t start moving soon. Yesterday all parts from C&H were as promised fit great! These folks are a family owned business doing a great job and I can’t wait for my next project I will recommend them to everyone I know!
Check them out!
Happy shooting keep your Dots tight
Bernard