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Posted: 7/4/2004 9:42:18 PM EDT
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I received this mount from a very reputable dealer here for my 16" AR15. I put it on and soon experienced problems with the screws deciding to loosen themselves up while shooting. I went to my local Wal-mart and picked up some Permatek Thread locker (Blue colored) which I assumed to be the same stregnth as Loctite. I used it on the screws in the base of the mount and the screws holding the rail on my CX4. Everything went great and I've had no further problems. I decided today to apply the same stuff to the screws holding the rings on the mount and this is where I ran into problems. The first three went fine. I torqued them down until it become pretty hard to get them to turn anymore. I wasn't really stressing myself but they were nice and snug. I went to do this to the last one and as it started becoming flush with the ring it just kept turning and turning. At first I thought the screw had broken in half, no to my dismay there were long strips of metal to be seen between the two halves of the rings where the threads in the mount were stripping out.... I backed it out, applied more Permatek and hoped that would hold it in place until I could contact ARMS. It should hold zero but I don't like the idea of only having 3/4 of the tension on my Aimpoint. Just a heads up for you guys. The Larue might not be such a bad idea.... I've heard they are made of pretty good stuff. This mount imparticular is made of cast steel I believe. Not how bad/good that is but I know cast aluminum isn't very good. Just a heads ups. Not sure on what I'm going to do. |
Send it back to me, friend. I'll send you a brand new one with a fivespot to cover your return shipping. I should be able to send it back and get a credit for it. This is the 2nd one this week that I've heard about with this problem, I've got to figure out what's going on with these. I've started to use the PRI mount on one of my own carbines and I think it might be a simpler, more rugged option for someone who doesn't need a cantilever mount. -Cory. [edit] Shoot me an IM or an email if you need my address.. |
I thought ARMS mounts were cast steel, they feel like it with how heavy they are. I also tightened them down evenly, it's not like there was a huge gap on one side and a smaller one on the other. If that was the case I would put a little of the blame on myself. And too Treetop, thanks a lot. This is normally where the manufacturer steps in, your customer service is above and beyond. Do you sell the PRIs? I was also considering the Larue but I guess I'll just give the ARMS another try. Thanks for all of the info guys. Editted to add: You're not supposed to use lube when you're locking threads with some time of solvent are you? Also the Permatek itself would act as a little bit of a lube. |
You know, I just tested my #22 rings, and they are steel. I could have sworn that my 22M68 was aluminum (with a steel base). I don't have it any more, so I can't test that memory. |
This is why you do business with dealers on this board! They take responsibility for the companies that they stock (even though it is not their fault) and handle the situation. PRI makes a MUCH better mount than ARMS for the Aimpoint IMHO. C4 |
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Elad, The top ring, screws, and the throwlever hardware are steel. The bottom half of the ring, the cantilever, and the throwlever base are machined aluminum. I do carry the PRI mount, it retails for $169 so it's a chunk more than the ARMS mount. If you decide you'd like to use your #22M68/cantilever as credit towards a PRI mount instead of another #22M68/catilever, I'll work with you on that. I'm pretty sure your mount was just a freak deal though, I've had no problems with the #22M68 myself and you might've just gotten a bunk one. A new one will probably fix you right up. -Cory. |
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