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Discussion Starter · #1 ·
I have this US Optics posi-slide and mount that is basically garbage. (yea!! $175 down the toilet!!)
Aside from the fact that it's out of spec or something, it has to slide to the rear to be removed and this prevents mounting a BUIS setup.

I know about the ARMS stuff, but want to know who has some reccomendations based on experience or whatever.

I'm totally open for suggestions, but the one criteria I have is that it not need to slide off the rail. It has to rock to the side or something.

thanks for your suggestions.
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LaRue and you'll be GTG.


....and you always get a ton of free stuff too. ;)
 

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Personally, I prefer the CCO. Lower than then LT150.

Sorry you had to find out USO isn't all it's made out to be the hard way.

If it makes you feel any better, the late owner of USO threatened to sue me for talking about how his "customer service" really was.
 

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I will throw a second vote for Larue. Not sure what the CCO is, I am familiar with the M68-CCO but haven't seen it used before for other optics.
 

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Which height of LaRue mount will be up to you and your gear, but htey will have whatever you need for certain. Will the scope objective be mounted back far enough so that clearance with the BUIS will be an issue? I'll try and get some pics of my LaRue SPR/M4 mount on an XCR this weekend. I've got a Burris 1-4x24 in it.
 

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I haven't had any problems with the center lugs...Between me and my buddy we have a few different mounts and no issues.
 

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Jack, the CCO is this one from LaRue - the M68-CCO:
http://stores.homestead.com/Laruetactical/Detail.bok?no=41

I quizzed Mark LaRue about getting a scope mount that would be at the same height as my Aimpoint. Nope. The easy answer was "use two of the Aimpoint rings". Duh. I was concerned about taking the scope off and on and it holding zero. Mark said "we made our name on return to zero" - the fact I'm using two rings instead of one?

No problems.

As for the center lug, one of my mentors has a bag full (literally, one of those big old-style paper grocery sacks) of broken ARMS rings. His sniper course is difficult to get through with a boltgun, semi-autos don't make it through. When someone shows up with ARMS rings, he pre-emptively tells them to chuck 'em and get some from LaRue.

According to him, no breakages over the years.

My only gripe about LaRue stuff is that the PVS14 mount has the pad in front of the PVS14 objective just a little too high. Wanted to interfere with the occular of the scope - until it got machined down (with the machinist actually)......
 

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One other thing you can think about is a cheek riser and going with standard AR height mounts. That way the mounts would be more versatile across more guns. Check out my post on the magpul CTR cheek riser. Using the 1/2 riser, my cheek weld is very very tight, tighter than with an AR, and I have considered going to AR height mounts which would allow me to run a flip to side mount. I'll know more after I get the 1/4 inch spacer in and can try it.

Maybe Terra can add if she expects the new stock to have a cheek riser. If it is, which I would expect it to, then I would go with standard height mounts.
 

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Actually, I run the lower M68-CCO mounts -AND- a cheek riser on the CTR stock.

I bought the package of 3 different height risers, and figured out I like the 1/4" the best.

Of course, this is personal preference, and highly dependent on the individual.
 

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I need to switch my arms mount to a larue one of these days.

I guess factoring in a ctr riser goes with that deal since I'd be going from an absolute cowitness to a lower 1/3 one. Bravo, when I do that maybe I could take the 1/2" riser off your hands...

I got my first larue mount the other day for my flashlight setup, and compared to my arms aimpoint mount it puts the arms to shame.
 

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MB, I would, really. BUT - I sold the 1/2 and 3/4 to another fellow on here.

Sorry about that.

I was joking with Mark LaRue once that his best friend in the industry was Dick Swan. The best thing Dick ever did for his business was stop talking to the customers. The best thing Dick ever did for Mark's business was keep his designs. Mark said that he started to give Dick a fruit basket with a card that said "thank you for just being you" (GRIN) but was a bit too nice to do so.

Mark WANTS that bag of broken ARMS rings. But the ARMS rings are government property, so there's a problem in getting them to him. Mark's idea was "guess how many broken ARMS rings are in this bag, and win a set of rings that won't break" >:D
 

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I run the Larue LT-104 (SPR/M4) mount on my XCR with a Millet DMS 1-4 scope. I find the height works fine for me with a Magpul CTR stock. Larue makes two higher mounts of the same design (1.5" and 1.93"). You need to be careful with getting a mount that is too low. The LT-104 is the lower of the three and the eye piece on my 1-4 scope would not clear my Midwest Ind. rear BUIS. I had to swap out the standard MWI BUIS for their low profile rear BUIS. This worked well for me, but other scopes with larger eye pieces (S&B for instance) may not.

I have a Millet Zoom Dot (30mm Red Dot) I'm working with now. It came with a very low Millet QD mount that was too low on an XCR (but would be great on a large revolver or shotgun). I just received a set of Larue LT-123 rings for it. The height seems to be just fine for co-witness of my MWI BUIS. I'll use the second ring in the set either for a magnifier or another red dot on a second XCR I plan to buy.

Larue is really a pleasure to work with. I spoke to a salesman and he knew about the XCR and height issues for optics on it. Also, the Larue has very good 30 return policy, but I've yet to use it.
 
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