A few weeks ago, I bought a Viridian RFX45, knowing it’s mainly an optic that won’t fit RMSc-cut guns. I bought the optic for use with a few duty-sized guns that I’ll be purchasing…those guns are cut for RMR sights.
I then wondered if this particular optic will fit a Tisas DS Carry (I’ve the Gen 1 version). They are cut for RMSc (the new gens might allow for RMR, though). Looking at the RFX45, it’s quite a bit longer than a typical RMSc optic, so I doubted I could fit the RFX45 to it. This is also why the RFX44 exists, as it is a mailbox-type of optic that fits guns that are cut for RMSc. I didn’t want to buy the RFX44 because it’s specs are inferior to the RFX45.
So, I decided to see if I could get it to fit, knowing I might be unsuccessful.
I bought an RMSc-to-Acro adapter plate and it arrived today.
I removed the Cyelee CAT from the Tisas DS Carry and test-fit the adapter plate to the gun…it fit right onto the gun without issue.
I then wanted to see how the RFX45 would mount to the adapter plate. It fit onth the plate without issue.
The biggest problem for me was finding screws. I had to use M3-0.5 x 3.4mm, as those were the only screws I had that would fit. I’d other longer M3 screws but they were too long and wouldn’t even put tension on the plate. The M3-0.5 x 3.4mm screws are super-short but they had thread locker and I had enough length to secure the optic. I also decided right then to buy some M3-0.5 x 6 mm (I believe 6mm will fit). They’re on the way to me now.
So, with the short M3 screws, the adapter plate was able to be properly mounted to the gun’s slide. From there, all I had to do was clamp on the optic (I love the Acro pattern).
The adapter plate lifts the optic so that it sits above the milling, otherwise the optic wouldn’t be able to fit in the smaller footprint. I also still have cowitness of my irons.
Note that the RFX45 is a closed emitter optic. It has a large viewing port. It’s also a green dot (all Viridian optics are green).
I absolutely can’t wait to test this setup at the range. I’ve a scheduled range visit tomorrow evening.
Some pics are below. Yeah, the gun is dirty – I use my guns.
