Just brought the Holosun 507C (same foot print as Trijicon RMR) for my P320 Pro-Cut slide full size, but can not find the adapter plate for it. I tried both Springer Precision
& Outer Impact adapter based on Sig customer service recommendation, but none of them worked. Please see the photos for your reference.
Outer Impact: Can't even seated properly
https://1drv.ms/u/s!Asj_bRw3DXiiw1PWBmEj-pdklfQU
https://1drv.ms/u/s!Asj_bRw3DXiiw1EBfQYJSwwhjKjb
Springer Precision:Fitment is great, but screw holes are not in proper location.
https://1drv.ms/u/s!Asj_bRw3DXiiw0-8o3zISQ1U-1pf
https://1drv.ms/u/s!Asj_bRw3DXiiw075cC_2ibrHO9Ph

This message has been edited. Last edited by: hyl768s,

Check with these folks:

https://shop.springerprecision...ter-plate-SP0224.htm

Hi, Pete, Thanks for your reply. I contact with Springer Precision and I've been surprised with their reply. Below is their reply:
Unfortunately, we do not have any mounts compatible with the Pro cut slides, I'm sorry.
Sincerely,
Kalob Kuk
Customer Service
Springer Precision LLC

quote:

Originally posted by Pete K:
Check with these folks:

https://shop.springerprecision...ter-plate-SP0224.htm

How about:

http://www.bobroengineering.co...REAR-SIGHT_p_51.html

Hopefully they have something.

C&H Precision:

http://www.chpws.com/product/s...s-factory-optic-cuts

The drop down has 3 options for P320 Romeo1 Pro Cut to RMR, Holosun, and Romeo3. Note the C&H descriptions refer to the type of optic the factory cut is for and not specifically the "pro cut" slide.

Hi, Pete,
Their adapter plate will not work either. Their adapter plate has build in rear sight for M17.

quote:

Originally posted by Pete K:
How about:

http://www.bobroengineering.co...REAR-SIGHT_p_51.html

Hopefully they have something.

Chpws adapter plate for Romeo1 Pro-cut is not available for order as well

quote:

Originally posted by ah3:
C&H Precision:

http://www.chpws.com/product/s...s-factory-optic-cuts

The drop down has 3 options for P320 Romeo1 Pro Cut to RMR, Holosun, and Romeo3. Note the C&H descriptions refer to the type of optic the factory cut is for and not specifically the "pro cut" slide.

I tried, but it says unavailable.

quote:

Originally posted by ah3:
C&H Precision:

http://www.chpws.com/product/s...s-factory-optic-cuts

The drop down has 3 options for P320 Romeo1 Pro Cut to RMR, Holosun, and Romeo3. Note the C&H descriptions refer to the type of optic the factory cut is for and not specifically the "pro cut" slide.

Finally got some positive respond from Sig support. Below are the email I send to Sig support team. As you can see, the respond for the first support request are more like "copy and paste" type answer so I reply back to Sig support "Amy" for further confirmation, then finally "Amy" reply back to me with more "researched" answer. I already place the order per suggestion. Will keep everyone posted.
Q:
Dear Support,
I have a P320 Pro-Cut full size slide and want to install the Holosun 507C sight, but not sure where I can purchase the correct RMR adapter plate for it. Most of the vendor are unsure of the pro-cut slide specification and not be able to give me suggestion. Please advise.
A:
The Pro Cut slides have an optic footprint cut for the Romeo1 Pro or the Leupold Delta Point Pro. Your adapter plate would have to match that footprint.
Reply from me:
I can't find any RMR adapter fit pro-cut slide. Holosun 507C has same foot print like Trijicon RMR. Does that mean the pro-cut slide not compatiable with Trijicon RMR red dot?
Follow A:
The Pro Cut slides use the same footprint as the Legion model, and Springer Precision is currently offering an adapter plate to mount a Trijicon RMR or SRO to the P320 X-Five Legion, and all X-Series pistols that are milled for the Romeo1 Pro. Their adapter is available on their website here: https://shop.springerprecision...RMR-Mount-SP0257.htm.

Just be aware that the Springer plate may require some fitting. I have seen exactly one and it required the removal of a fair amount of material on the rear face. Not a big deal, just make sure you're either up for it or "know a guy."

Thanks DaBigBR,

I found a company who will do the conversion for only $80. That's including the 2 way shipping and free installation and board sight in so I cancel my SP order. Here is the link for your reference.
https://www.landmprecisiongunw...ive-to-trijicon-rmr/

quote:

Originally posted by DaBigBR:
Just be aware that the Springer plate may require some fitting. I have seen exactly one and it required the removal of a fair amount of material on the rear face. Not a big deal, just make sure you're either up for it or "know a guy."

Mark at L&M is a great guy. He has cut two slide for me and I will be sending him a P229 slide when I save up to having the cut done.

Ya, That's what I heard. THe only downside is the 4+ weeks turn around time.

quote:

Originally posted by babue:
Mark at L&M is a great guy. He has cut two slide for me and I will be sending him a P229 slide when I save up to having the cut done.