Holosun 509T slide milling

[Lon]

So the C&H plate fits an RMR cut slide? I was under the impression the Glock MOS cut was different then an RMR direct attach mill cut.

The 509 comes with a adapter plate that fits in the RMR cut. I do believe that C and H Also makes an adapter plate that fits a plain RMR cut.

[Lon]

This is my 509 on a Lonewolf slide that has an RMR cut. I’m using the holosun adapter plate.

[23JAZ]

This is my 509 on a Lonewolf slide that has an RMR cut. I’m using the holosun adapter plate.

How deep is the optic cut on that gun?

[Lon]

How deep is the optic cut on that gun?

I’ll take some measurements later tonight if I can.

[Lon]

How deep is the optic cut on that gun?

Went ahead and measured 3 slides. From top to bottom:
Lone Wolf slide
AIM Surplus brand slide
Brownells slide







As you can see, the brownells slide is by far the deepest cut. Too bad I can’t use the adapter plate with it.

And with it mounted:


EDIT: No idea why the pics got whopperjawed. 🤷*♂️

[23JAZ]

Went ahead and measured 3 slides. From top to bottom:
Lone Wolf slide
AIM Surplus brand slide
Brownells slide







As you can see, the brownells slide is by far the deepest cut. Too bad I can’t use the adapter plate with it.

And with it mounted:


EDIT: No idea why the pics got whopperjawed. 🤷*♂️

I had contacted Holosun earlier in the week and the guy on the phone said he measured an RMR adaptor plate for me and it was .1997”. Than when I got the sight in last night I measure the plate. Seems like a big difference.
My slide will be done today. I”m having it mill to .150” in depth for an RMR footprint. Looks like it will end up working well until C&H get a better plate out.

On a side note, that PMM comp looks great. I’ve heard good things about them. I am trying to resist putting one on the 19.

[Lon]

On a side note, that PMM comp looks great. I’ve heard good things about them. I am trying to resist putting one on the 19.

I do like the comp. the profile of that AIM slide is not the same as the OEM slide so it doesn’t fit flush the way it would on an OEM slide. I’m gonna have to do some Dremel work to make it fit better.

[helothar]

As you can see, the brownells slide is by far the deepest cut. Too bad I can’t use the adapter plate with it.

EDIT: No idea why the pics got whopperjawed. 🤷*♂️

509 adapter plate doesn't work with the brownells slide? Is there any way to mount a 509 to one of these slides?

[Lon]

509 adapter plate doesn't work with the brownells slide? Is there any way to mount a 509 to one of these slides?

Not without grinding down those raised posts that you screw the screws into. I’ll take some more pics when I get home later tonight. I wasn’t willing to try it. I’m really hoping that brownells will have a 509T slide down the road. They’ve got an ACRO slide now I believe.

[helothar]

Not without grinding down those raised posts that you screw the screws into. I’ll take some more pics when I get home later tonight. I wasn’t willing to try it. I’m really hoping that brownells will have a 509T slide down the road. They’ve got an ACRO slide now I believe.

Thanks, I just got a brownells slide from the black Friday sale, was hoping to put a 509 on it but I guess I'll have to settle with the 508 for the time being