Offset MRDS on optic: Am I doing this right...

[JediGuy]

Finally got around to mounting these.

Leupold 3-9x in DD mount with Insight SQFS offset from the primary optic itself, versus the receiver/handguard. Seems to transition well.

I have a DD 1 o’clock mount ready to go, but decided to try this first. It seems like a fairly decent solution and avoided my mounting the MRDS to the handguard or back right in front of my eye. Also, if I mount the scope, the backup goes with it.

Used? No, I just mounted.

Any concerns with this setup? Anyone else do this?

https://i.imgur.com/bkRO0O0.jpg

https://i.imgur.com/aovVwPE.jpg

https://i.imgur.com/HKAT2Na.jpg

[monty_d_33]

I have something similar, Steiner 1-4 with Trex offset https://uploads.tapatalk-cdn.com/20200920/d5b3e22e53b2376c6cc6c10758b0f968.jpg


Sent from my iPhone using Tapatalk

[Disciple]

Is that at the same bore distance as the scope?

(from ValhallaTactical.com)
https://i.imgur.com/5y5AKnr.jpg

[militarymoron]

Any orientation will work, but I prefer mine oriented like monty in the 2nd post has it. I prefer the traditional horizontal vs vertical window.

[mebiuspower]

https://www.youtube.com/watch?v=1wqbZg2waXE

[JediGuy]

Is that at the same bore distance as the scope?

Just did some estimations, tough to get it exact. But, it seems like the MRDS is probably 1/8” low right now. Should be able to rotate it up a bit.
Edit to show quote properly

[GH41]

Is that at the same bore distance as the scope?

https://www.valhallatactical.com/pub/media/catalog/product/cache/74c1057f7991b4edb2bc7bdaa94de933/2/0/2020-04-28_hanger_tilt.jpg

If you mount it any way other than illustrated in this picture it will be a bitch to zero and never shoot to the point of aim at any range other than the distance it is zeroed at.

[JediGuy]

If you mount it any way other than illustrated in this picture it will be a bitch to zero and never shoot to the point of aim at any range other than the distance it is zeroed at.

Thanks for the reminder on that. I asked because something was bugging me but couldn’t remember what it was. First time doing any sort of offset mount besides using the DD 1 O’clock mount on an M&P15-22 that I haven’t actually gotten to the range yet.

[JediGuy]

I pulled the MRDS from the scope and moved to the DD offset rear by the charging handle. This works just fine and likely where I’ll leave it.

I did try it at 1200 on top of the primary optic, but this was way too high with the setup I have. Other mounts/optics probably could lower it a bit.

[Furbyballer]

Grab an arisaka offset mount with the correct plate for your MRDS. They work awesome and weigh almost nothing. They give you 30deg and 45deg mounting options as well.

[ReaperAZ]

I need to mount my LPVO so I can try this out as it looks to have some merit.

[WickedWillis]

Grab an arisaka offset mount with the correct plate for your MRDS. They work awesome and weigh almost nothing. They give you 30deg and 45deg mounting options as well.

Arisaka makes the best I've seen.

[Valhalla]

If you mount it any way other than illustrated in this picture

Came a little late and didn't see photo/illustrations, but there are simple solutions to both points.


never shoot to the point of aim at any range other than the distance it is zeroed at.

That only happens if you use it "wrong". With OP's setup, he would first rotate the gun until the dot is directly above bore, then zero the RDS with the gun in that orientation. Because that's how the gun should normally be fired at. As long as you keep the dot directly above bore, the ballistic will work exactly the same way as any traditional optic setup. Aka the bullets will hit exactly how everyone expects them to hit, without any funny business regardless of distance.


it will be a bitch to zero

To zero, position the gun as stated in #1, and then simply rotate the TARGET so it's orientation matches the MRDS. Then zero as usual.

Our site is currently down (targeted ransomware attack) so I can't direct-link photos, but here is an IG post utilizing the same concept, except we matched the sight-height over bore for you already and the optic is exactly at 90 degrees when used (so it zeros super easy):

https://www.instagram.com/p/CE9_ttQJM-0/

Cheers,



Valhalla Tactical

[Valhalla]

Any concerns with this setup?

Nope!! No concerns at all. In fact that is our recommendation if anyone were to use a clamp-on type piggyback mount that holds to the "tube" of any optic. Put the MRDS at roughly 4 o'clock, tweak it until it perfectly matches sight-height over bore, and go to town. Your cheekweld will never have to change between using the two optics, and every time you flip back from MRDS to your main optic, you'd find your eye automagically positioned correctly in the eye-box... that alone will make you wonder why people would ever do it any other way.

VT

[Disciple]

Came a little late and didn't see photo/illustrations, but there are simple solutions to both points.

It was your illustration I used in my post, and it's invisible now because as noted your site is down. I saved a copy; mind if I upload and link it?

[Valhalla]

It was your illustration I used in my post, and it's invisible now because as noted your site is down. I saved a copy; mind if I upload and link it?

Oh yes!! That would be fantastic!!!

I am very sorry if I jumped the gun, but it looks like we have been on the same page from the very beginning. :cool:



VT

[Disciple]

edited into original post

[AndyLate]

This is probably a stupid question, but doesn't the offset MRDS/RDS get the crap beat out of it?

I am running a 2.5-10 optic on one AR and it seems a natural for an offset RDS/MRDS (if it was a "hard use" gun).

Andy