Not sure if you made up for you mind, but I figured i'd add a few pics of my RMR Glock 17 with suppressor height sights.

Great pics. Did the sights come as a pair or did you choose individually? What front and rear heights are they (and how measured? What is the baseline?)? Can’t really tell - lower 1/3 or absolute)?

Trij B&R are my default but looking for wide rear notch and thin front post. Those look good.

Link to sights: https://www.amazon.com/gp/prod...02_s00?ie=UTF8&psc=1

I'm a sucker for trijicon HD/XR's, but these work just fine for a back up on an RMR.

Thanks. Cheap too!

I'll look into these more. I like HD XR too but no suppressor height.

quote:

Originally posted by DaBigBR:
recoil boss

What is a "recoil boss"?

I think all parts received or shipped.

I think I'll have an RMR running by early next week. Will take to range to zero and test.

The 6.5 dot is actually bigger than I thought it would be. But no functional opinions yet. Will test it out and practice before forming an opinion.

quote:

Originally posted by sigfreund:

quote:

Originally posted by DaBigBR:
recoil boss

What is a "recoil boss"?

A raised post that interfaces with a recess on the optic.

quote:

Originally posted by DaBigBR:
A raised post that interfaces with a recess on the optic.

Thanks. I thought it might be something like that, but wasn't sure.

Okay. Got an RMR mounted. Sort of.....

The poly80 slide looks pretty good and well made. Cleaned off all the machining gook. Factory slide parts went in well (but I wasn't sure I was doing the channel liner right - first time). Anyway, everything seems to be functioning.

The slide has holes for the RMR screws - the holes are flush with the recess.

Installed the RMR using the Trij provided screws. One screw went in basically fine. The other screw got stuck about 3/4 way in. Damn, did I cross thread?

Close examination: the screw hole goes through the slide to the extractor plunger. The screw was binding against the plunger!!

The RMR, I thought, was supposed to mount flush against the slide. But I didn't really like it because the battery exposed - there's no bottom on the RMR to cover the battery!. Turns out there is a plate that can be ordered separately (RM63 for $9). Well fuck, $500 part can't ship with a battery cover? Okay, whatever Trijicon. Fuck. So, now I need to find and order the cover. But the screws are pretty long - even w/ the cover, I may have to figure out how to cut the screws. I figure about 3-4 threads is all that will go into the slide. Hope that's enough to hold the RMR in place. Also, not sure I can use loctite for the screw - worried it might get down into the plunger.

Anyway, I made a couple of shims using 'cardboard' from some empty ammo boxes. Somewhat mounted the RMR just to test fit and function (not screwed down tightly so won't be able to shoot).

Learnings:
1) presentation seems fine. The dot is easy to find as soon as I bring up the gun.
2) 6moa is huge. I'm not sure I made the right choice. Certainly usable but I'm wondering if 3moa would have been better.
3) I don't like the brightness controls. Hard to tell if I'm pressing in the right spot. And no feedback if I pressed or not. It's like pressing on solid metal.
4) I'm used to racking the slide by grabbing the rear, hand over the slide with fingers on the right side of the gun, palm on the left side. Out of habit, went to rack the slide - hey, no place to put my hand as the RMR is there. So, I need to figure out the best alternative. For now, I just do the same thing but grab the front of the slide (in front of the ejection port).
5) the front slide serrations are pretty good - very good, solid grip

Question: what's the best way to mount the RMR given this slide? Do I need the RM63 plate? Something else recommended? If I need to cut the screw, what's the best way?

ETA: Does anybody know what the stock Trij RMR screws are - what thread? Are they 6-32? I can try to approximate the length I need but not sure what the threading is. The stock Trij screws work on the P80 slide holes. If I can figure out the thread, maybe I can find a replacement at lowes.

I'd suggest the plate for any application where the entire optic is not on a flat surface (which includes any slide that the optic slightly overhangs.

It is normal to have to shorten a screw with a Glock to keep it from hitting the EDP. I would install the screw, figure out about how much to remove, and shorten a little bit at a time, reinstalling and verifying as you go. You want as much thread engagement as you can get.

You should be using Loctite blue, VC3 Vibratite, or an equivalent nonpermanent thread locker on the screws. Proper application means putting it on the threads and letting it set up for the period of time recommended by the manufacturer before installing the screw. I would not worry about thread locker on the EDP either way, though. Loctite makes a version of their product in something like a glue stick or chap stick tube that I really like for stuff like this.

You probably need more than the plate you need the kit with the shorter screws if those were not supplied to you with the slide. AC32064. But the mfg should be able to tell you what screws you need in terms of pitch and the length. The non OEM market f***s this up all the time. In addition the correct mounting (or at least the one that has worked for me over tens of thousands of rounds) takes some dielectric grease and a proper torque setting with locktite or vibratite. I just grab the RMR to rack the slide.

hrcjon: thank you. I missed the kit number the first couple of times I read your post. When I finally figured out what it was, after hours of research trying to figure out the dimensions of the adapter plate, the screw dia/tpi/length I need, it turns out all I really need to do was order the kit you were pointing out. Kits ordered.

But I think I figured out what screw to get: 6-32 flat head, torx, 3/8". I think the kit screws are a few thousands longer than that.

What a screw up. It seems like this kit is needed a good percentage of the time by RMR purchasers. So, not only does Trij not provide this w/ the RMR, they provide no information (that I could find) on what screws and stuff I need to get to make this all work. And the slide should have come w/ the right parts as well. I don't know - between Trij and the slide maker, they sure didn't make this plug and play for me.

I'll get some Blue (I think I have some) or vibratite.

Dielectric grease on the hole threads? Blue on the screw threads (let it firm up before inserting the screw)?

I've got handprints / grease on the RMR glass now.... I'll figure out how to rack the slide.

The screw issue is relatively uniquely a Glock thing. I know Glocks are a big chunk of the guns getting optics and that 100 screws is about $12 from McMaster, but this is how the RMRs have been packaged forever. I'm sure they just don't see a need to change and don't want to confuse folks. Hard to say.

I don't know what mounting plate you need for that slide. But this is the sealing plate for the RMR along with the proper length screws. You need a plate like this to seal the bottom side of the RMR. This will go between the RMR and whatever mounting plate you use.

https://www.midwayusa.com/prod...019255967?pid=302082

Thanks. Yup same as what hrc was pointing out. Ordered.

As hrcjon mentioned once the RMR is solidly mounted just use it for a charging handle and rack the slide. I have done this for years with no problems from the RMR.

That plate and screws are specifically for MOS guns. The plate will work on anything, but the screws are not intended for a direct to slide mount and will both be relatively short. You may be able to get there by using one factory screw and one kit screw, though.

quote:

Dielectric grease on the hole threads?

Nope. The bottom of the RMR has a oring seal. you want some on that oring to help it seal. The screws need to be clean and dry for threadlocker to work properly and to get proper torque readings so don't get any grease on those. The screw length issue is totally annoying. On std. setups like the MOS guns its easy to know since Trijicon will provide them in the kit. On custom milled stuff I expect the vendor to provide them and if they don't I expect them to be able to tell me exactly what I should be providing. There is very little thread engagement in most of these setups so you need to use as much of it as you can.

That makes more sense.

I'm thinking the screw hole studs that Zev and Brownells slides use may be a better way to go.

I would guess that the MOS adapter plates make the RMR sight higher above the barrel than the milled slides allowing for direct attach. Maybe doesn't matter.... If so, should I consider an aftermarket MOS slide instead of direct attach?

I know some people obsess over height above bore, but I have shot tens and tens of thousands of rounds in RMR pistols, some MOS, some direct milled, some with adapter plates like the trijicon one for 1911 and some with custom adapters to deal with guns that don't have anyway to direct mill. I have never felt a hoot of practical difference in all that. And in none of those has the location of the backup suppressor irons height been a meaningful problem. I don't like the screw hole studs since they mean you have to use a much smaller diameter screw to fit in them and that's prone to its own issues.
You have a slide, if its competently made it should be able to work fine. Its not one I have any personal experience on, so I can't help with the specifics of getting it running, but it shouldn't be too difficult.