[geriatricpollywog]

I had several things I wanted when I decided to add an optic. I wanted to be able to use my iron sights with some kind of co-witness, and I wanted quick detach capability for my optic on top of the H&K brand picatinny mount. I just like the overall versatility of the set-up. I ended up getting a Trijicon MRO Pro mounted on a KZ Ultra-Low QR mount on top of my HK picatinny mount. The KZ mount is the weakest part of the set-up, but the MRO seems to hold zero no matter how many times I remove it and put it back on (which I do a lot), so I've been happy with everything. Not being able to co-witness the sights was never an option.

My HK MLI claw mount rail has arrived. I am considering a Trijicon MRO HD. Are you saying you get a perfect co-witness with the front sight using the HK MLI rail + KZ Ultra-Low QR mount + Trijicon MRO Pro?

 

[DrDoom]

My HK MLI claw mount rail has arrived. I am considering a Trijicon MRO HD. Are you saying you get a perfect co-witness with the front sight using the HK MLI rail + KZ Ultra-Low QR mount + Trijicon MRO Pro?

No, I don't get any co-witness of any kind. Yeah, my last post was probably confusing. The MLI rail is just too high, and the MRO Patrol way too big. I settled on having a low profile when the MRO was mounted on the MLI and being able to attach and remove it quickly when I wanted to use my iron sights.

 

[geriatricpollywog]

No, I don't get any co-witness of any kind. Yeah, my last post was probably confusing. The MLI rail is just too high, and the MRO Patrol way too big. I settled on having a low profile when the MRO was mounted on the MLI and being able to attach and remove it quickly when I wanted to use my iron sights.

Thanks for clarifying. My brain doesn’t process double negatives very well.

 

[DrDoom]

Thanks for clarifying. My brain doesn’t process double negatives very well.

Probably not going to happen, but if I did get a second SP5, I think I would use a Battle Steel mount and the lowest Scalarworks QD LEAP mount for whatever optic I decided to use. I think the irons might be visible through the LEAP mount, and the optic wouldn't be too terribly high for my taste. Still, nothing close to any kind of co-witness.

 

[Nick337]

I have never heard of any kind of co witness with the mli mount. I had one for sale.

 

[DrDoom]

I have never heard of any kind of co witness with the mli mount. I had one for sale.

It would almost require a revolutionary new type of optic to sit that low. Even with the Battle Steel mount, there is very little height left to put something like a LEAP mount on and still be able to see over the surface of the bottom of the mount to use the irons. Once again, however, still no co-witnessing of any kind in this scenario. I don't know why I complain, the SP5 is awesome without sights of any kind, including the irons.

 

[HKClassics]

The lowest mount on the market and only one that gives the absolute cowitness is the BattleSteel thread on mount from Botach and the Aimpoint micro series. I used the Aimpoint T2.

 

[HKClassics]

It would almost require a revolutionary new type of optic to sit that low. Even with the Battle Steel mount, there is very little height left to put something like a LEAP mount on and still be able to see over the surface of the bottom of the mount to use the irons. Once again, however, still no co-witnessing of any kind in this scenario. I don't know why I complain, the SP5 is awesome without sights of any kind, including the irons.

There is hope my friend. Join us in the promise land. See my other post
Took some purchasing but this is the only way to absolute cowitness with a red dot. HK parts even says it is THE lowest on the market.

Alos just to mention, the iron sight in my first picture you can see the bottom lip, not sure why it shows in the picture because when you shoulder the gun all you see are three circles. The rear iron, the dot and Aimpoint circle, and the front sight circle.

Best setup out there.
yes you can absolute with the RMS mount with the RMS sight but it has only two claw points, looks like a toy, and reliability cannot match at all with Aimpoint.

 

[DrDoom]

There is hope my friend. Join us in the promise land. See my other post
Took some purchasing but this is the only way to absolute cowitness with a red dot. HK parts even says it is THE lowest on the market.

Alos just to mention, the iron sight in my first picture you can see the bottom lip, not sure why it shows in the picture because when you shoulder the gun all you see are three circles. The rear iron, the dot and Aimpoint circle, and the front sight circle.

Best setup out there.
yes you can absolute with the RMS mount with the RMS sight but it has only two claw points, looks like a toy, and reliability cannot match at all with Aimpoint.

I've enjoyed your posts and appreciate all the work you've put into them, but I need the QD capability. Plus, I'm partial to Trijicon optics, hence the MRO Patrol I'm currently using. I do have a Battle Steel mount for the MRO footprint, but I've never tried it to see what kind of height it produces with my Patrol optic. Also, I like the MLI mount better than anything else I've seen out there in spite of its height and bulkiness.

 

[HKClassics]

I've enjoyed your posts and appreciate all the work you've put into them, but I need the QD capability. Plus, I'm partial to Trijicon optics, hence the MRO Patrol I'm currently using. I do have a Battle Steel mount for the MRO footprint, but I've never tried it to see what kind of height it produces with my Patrol optic. Also, I like the MLI mount better than anything else I've seen out there in spite of its height and bulkiness.

no worries we all have our style and needs. I happen to love Aimpoint you Trijicon. Both just as proven.
If memory serves I believe BattleSteel also makes a mount you can bolt the MRO into which brings it down further. Problem is that the MRO already kinda has a base to it without a mount, then a mount adds to its already slightly taller profile.
Not sure what your cowitness would be with the MRO at that point with the bolt on style mount.
If you do try it please let me know what cowitness you get. My guess would be a lower third.
Now this alll goes out the window for a quick detach need. And not sure if the mount I see is the one you already have.

And I did find they have it for the MRO.
Just select MRO from the drop down on the link.

BattleSteel HK MP5/HK33/HK53 Low profile Mounts

BattleSteel HK MP5/HK33/HK53 Low profile Mounts On Sale - Best Tactical Gear Shop - botach.com

botach.com

 

[DrDoom]

no worries we all have our style and needs. I happen to love Aimpoint you Trijicon. Both just as proven.
If memory serves I believe BattleSteel also makes a mount you can bolt the MRO into which brings it down further. Problem is that the MRO already kinda has a base to it without a mount, then a mount adds to its already slightly taller profile.
Not sure what your cowitness would be with the MRO at that point with the bolt on style mount.
If you do try it please let me know what cowitness you get. My guess would be a lower third.
Now this alll goes out the window for a quick detach need. And not sure if the mount I see is the one you already have.

And I did find they have it for the MRO.
Just select MRO from the drop down on the link.

BattleSteel HK MP5/HK33/HK53 Low profile Mounts

BattleSteel HK MP5/HK33/HK53 Low profile Mounts On Sale - Best Tactical Gear Shop - botach.com

botach.com

Yes, I have that Battle Steel mount. Just haven't used it. I should give it a try to answer your question and see for myself, but I'm too lazy to take the MLI mount off. I'm doubtful that I would get any co-witness at all. I also have an MFI mount that I'll probably get rid of unless I pick up several more SP5's for other rooms in my house.

 

[HKClassics]

Yes, I have that Battle Steel mount. Just haven't used it. I should give it a try to answer your question and see for myself, but I'm too lazy to take the MLI mount off. I'm doubtful that I would get any co-witness at all. I also have an MFI mount that I'll probably get rid of unless I pick up several more SP5's for other rooms in my house.

I tired that mount myself and didn’t like it. Flimsy to me. Not sure of those captive anchors. Easy to put on but to me I’m only going to put it on once, the B&T style mount procedure or Battlesteel aren’t that hard, especially when I need something solid.

looking now at the side by side for the aimpoint on Botachs website and the MRO, I see a shelf they have on the aimpoint mount they don’t for the MRO. My guess is that they actually had to raise the base for the aimpoint but didn’t have to as much for the MRO meaning you might actually be able to cowitness?

Interesting.
Well if you try it let us all know! Thanks!

 

[JRHorne]

Posted this in the Scalarworks mount thread, and figured others may see it here:

Goal: Aimpoint Micro Pattern (H/T/Holoson/PA) mount that could 1) Be mounted to the lowest profile claw mounts, 2) have a window to look through the mount and use irons/diopter whilst mounted, and 3) put the red dot just slightly over the front sight hood. Of course the Scalarworks mounts work, but I did not want the "front canted" look on my Century AP5S-K. I wanted pure vertical.

The main consideration for this was that the BattleSteel ultra low profile from Botach only has 3 slots for pic. It also has a taper on the front and rear portions of the pic edges that limit the overall length of the mount you can use with it. Since it was the lowest and the price is great, I wanted to see if I could find something that made it work.

BattleSteel HK MP5/HK33/HK53 Low profile Mounts

BattleSteel HK MP5/HK33/HK53 Low profile Mounts On Sale - Best Tactical Gear Shop - botach.com

botach.com

Unfortunately, only having the 3 pic slots negated the main mount I had in mind: the Battle Arms Development mount. I have several of these mounts for MROs and really like them. However, the 2 screws and spacing doesn't allow it to work with the Battlesteel claw. I did much later find out that MKE makes a claw that is low profile and continuous pic. It looks pretty low profile, so if there is a mount combo you want to use such as the BAD, Unity, or other that needs more pic, I'd definitely look into this one.
MKE Claw: MKE AP5-P AP5-M Optic Mount SALE - AtlanticFirearms.com

Quick Aside on the BAD Mount
There are plenty of negative reviews about them online, primarily from the fact that they included screws that were too long for the MRO and people were breaking them off in the optics. Either Trijicon changed the mounting holes after their development of the mount, had inconsistent mounting hole depths (unlikely, but this is what BAD told customers which pissed them off), or some combination. The world may never know the truth, but it's definitely hurt BAD's reputation.
BAD mount: Aimpoint Lightweight Optic Mount - Absolute Co-Witness

The Solution
So this meant that the optic mount needed to be a more clamp and single screw style. Well low and behold I had purchased an AR9 from a buddy with a Holosun 403 on it. So I started eyeballing the mount... hmmm..

The important part is at the bottom here, the center screw.

However the length of the mount is a problem. You have to take the screw and respective locking piece off the mount, center it, and rock it on. And by doing so, you will remove a slight bit of metal from the Battlesteel claw mount. Barely any though, not enough to matter. If it doesn't rock right on, grab a very light rubber mallet and give it a few taps. Once it knocks that slight bit off the edge of the Battlesteel claw, it's easier to rock on and off. So it fits! But it was lower 1/3 and I wanted absolute. So I searched more, and found that Right To Bear sells the PA mount in absolute for cheap.

Primary Arms Micro Dot Riser - Absolute Cowitness

Primary Arms Absolute Cowitness Micro Dot Riser

www.righttobear.com

6061 and made in China, but funny enough a 3 year warranty from PA. For 30 bucks, I tried it. Worked out GREAT.

Now the plan was to acquire a T2 for this gun, the Holosun was just a proof of concept really. Wasn't sure how I felt about mounting a T2 on a Chinese PA mount. So a few days later of course, I am looking at B&T's website for handguards for my SP5, and find this:B&T QD mount "Skeleton" for Aimpoint T Series 39mm

WHY DIDN'T ANYONE TELL ME THIS EXISTED!?!?!? Ordered it immediately, they had it to my house in like 2 days, and it is absolute ART. Already test fit it and confirmed it works. Window is perfect to look through to use your BUIS. Now, time to order my T2!

Hope this helps folks wanting to run a similar setup but have options other than the Scalarworks.

 

[waz0wski]

The BattleSteel mount for the Holosun 509T gives co-witness with irons - source

I run the Midwest rail w/ a 509T attached via ADM low qd mount - its roughly “lower 1/3” with the irons and good height for quick acquisition
here's a potatoPhone picture, I'll replace with a better one with my dSLR later

 

[flesheatingvirus]

MFI low profile rail mount, Trijicon SRO with Scalarworks mount (1.42" high). I can still use the irons, but barely because of the hump in the mount.

 

[rayrevolver]

MFI ultra low profile rail mount, Trijicon SRO with Scalarworks mount (1.42" high). I can still use the irons, but barely because of the hump in the mount.

I bought the HK MLi rail and it does the same thing with a Scalarworks mount, you can barely use the irons. The further to the rear you move the Scalarworks, the better the irons sight picture.

That said, last time I shot with irons only and they are too damn low. I like a more heads up shooting posture, so irons will be for backup only.

I may go back to the B&T rail and sell the MLI. The lower B&T rail works better for both irons through the bottom and just overall optic height.

 

[JzY]

MFI ultra low profile rail mount, Trijicon SRO with Scalarworks mount (1.42" high). I can still use the irons, but barely because of the hump in the mount.

Nice set up however that’s not the ultra low profile mount. Looks a bit higher which is why it’s hard to use irons.

 

[drsullivan]

 

[Nick337]

Another great option to run is the infitech mount. i have two of them. jus my opinion its the best on the market. if absolute cowitness is what your looking for. this is it. Rounded corners where it mounts onto the gun. hes a vendor on here also.

 

[flesheatingvirus]

Nice set up however that’s not the ultra low profile mount. Looks a bit higher which is why it’s hard to use irons.

Whoops. You are correct. It’s the non-ultra windowed version.