QD vs Standard optic mount for precision AR

[Flight Medic]

Mounting a Vortex Razor 4.5-27x56 on my new AR build. Originally wanted to go with the BOBRO 34mm Dual Lever Precision, but I'm concerned that the QD mechanism can be effected (affected?...always confused by those) over time by recoil and no longer hold zero. I was just concerned about the BOBRO after reading about a gentleman that had two different mounts suffer from spring lug shrinkage and allowed the mount to slide back and forth on the uppers. Apparently BOBRO doesn't use a machined-in recoil lug. If the lug doesn't shrink, the mount will hold with within .001 or so. However, if the lug shrinks .006, it will go from holding zero to chasing zero, and the amount of zero shift will then depend on how straightly machined the upper is.


My other choice was the Geissele 34mm Super Precision mount...but it will run me $100 more than the BOBRO and wasnt sure it was worth the added expense. The Vortex offering in 34mm was the least expensive, but they dont list a 20 MOA option.

Thoughts?
Alternative suggestions?

I need a 20 MOA cantilever model that will put the scope forward enough for eye relief. I cant use straight rings as my handguard will have no rail, so whatever I get must mount to the receiver.

Also, is there an ideal ring height for a 56mm objective? Im using a Lancer LCR5 round carbon fiber forend (if that makes a difference).

Any advice greatly appreciated.

.

[Kswhitetails]

I use a LaRue LT104 which is a cantilever QD mount with 0 MOA of cant. I also have an LT 745 with is basically the same thing with 20 MOA built in. I can remove and replace both optics, and both return to zero within 1/2 inch every time. Never more than that, often without any discernible shift at all. They're probably not precision rifle good, but they're damned good for anything in the Grendel envelope. On the LaRue mounts, the rear lever locks, making changing it impossible without being intentional about it.

I would recommend the 745 to any AR user that needs cantilever, and 20 MOA. I have nothing but good things to say about it. https://www.larue.com/products/larue...ount-qd-lt745/

The BoBro stuff is well reputed for being reliable. As is the American Defense stuff. They're all about the same money wise. I'd stay away from the Aero precision ultralight. I know lots of folks swear by them, but they're far too thin to be reliable under pressure in my experience. the Burris PEPR QD seems to have good reviews, but most of the time, if you're going to spend good money on rifle and optic you want good parts, why chance a cheaper mount?

Look at the LaRue website, he's running a special on his new mount, which has been redesigned to make adjustment tool-less. If I were doing it over, I'd go that route. As I said though, I have no complaints about what I already own. Set it and forget it. Lever open, remove. Reinstall, lever closed. Shoot.

https://www.larue.com/products/lt204/ I don't see a 20 MOA version yet though.

[mdram]

i was searching for the same thing. i have not ordered it yet but i am 99% sure i am going with a zrodelta

[Flight Medic]

I totally forgot about Larue. I have one of their QD mounts on my 300 Blackout SBR (obviously not a precision shooting application). And WOW, their new mount is 1/3 the price of the BOBRO!!

Thanks, mate.

[Flight Medic]

i was searching for the same thing. i have not ordered it yet but i am 99% sure i am going with a zrodelta

Wow...them there is fancy lookin!! Of course they're "SOLD OUT" of the 34mm 20 MOA. And, since they're in the Geissele price ballpark, I will probably just go with that. Actually, the Bobro is also in the same price range, but I'd get a 40% discount on the Bobro through AA Optics who, unfortunately, do not carry Geissele.

[maxxmojo]

If Geissele mounts aren't on sale, I usually look at Nightforce Unimounts and an alternative.

[CJW]

My last 2 QD mounts have been ADM mounts. Very happy with them.

[Klem]

SPUHR makes a QD 34mm cantilever mount that is 20MOA and 1.5" above the rail. Their reputation for quality is international. https://spuhrwebshop.com/en/isms/sp/34/6/qdp-4616.html

1.5" is standard scope height for an AR.

If you want opinions of QD vs screws, I don't need scopes to come on and off in the field so prefer clean-profile screws.

[Flight Medic]

SPUHR makes a QD 34mm cantilever mount that is 20MOA and 1.5" above the rail. Their reputation for quality is international. https://spuhrwebshop.com/en/isms/sp/34/6/qdp-4616.html

1.5" is standard scope height for an AR.

If you want opinions of QD vs screws, I don't need scopes to come on and off in the field so prefer clean-profile screws.

Thanks for the recommendation. I wasn't absolutely needing QD, I just thought if I could save $100 and it WOULDN'T BE PROBLEMATIC then win-win. However, my goal is to take this rifle to 1000 yards. So if I would get more reliable performance from a non-detachable mount, then its worth the extra cash to me.

EDIT: Just checked out the SPUHR...$425 (U.S.) is too rich for MY blood. Perhaps if I was mounting a Schmidt or a Hensoldt...but not for a Vortex. LOL
.

[FRB6.5]

I have Larue 112 (10 MOA) and 745 (20 MOA) and am happy with both of them. Sadly their site doesn't show either in stock, so you'll likely have a 2-4 week wait for them.

[dl126]

https://www.americandefensemanufacturing.com/view/product/298/

I have a few of these.
Never had a problem.

[centerfire]

I can't think of a single time that I've ever needed a QD scope mount on a precision rifle. There are a bunch of mount manufacturers that offer non QD mounts, Badger, Spuhr, NF, Larue, Etc. I like Badger because they offer heights lower than 1.50" but any of them work.

[Flight Medic]

I can't think of a single time that I've ever needed a QD scope mount on a precision rifle. <snip>.

Neither do I. Literally JUST wanted to save $100 and make sure I'm not compromising performance/reliability.