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Posted: 3/25/2007 8:50:58 PM EDT
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Why do all my uppers wobble like a drunken sailor? I have two Mega lowers and a new POF gen one. BUT on my buddies STAG lowers they as tight as a frogs ass. I'm at a loss? Some advice would be greatly appreciated. THX all |
You might try one of these JP Tension Pins if the acc-wedge does'nt get the job done. 75% of the people here would just say screw it , it doesnt effect accuracy. Personally i cant stand the wobble, fortunately the accu-wedge worked for me(CMT uppers/DPMS lowers)  Not exactly sure why their wobbly, sloppy tolerances on the uppers would be my guess since your using quality lowers(since i doubt you have 3 lemons). What kind of uppers are you running? |
+1, If you don't want any wobble, get a RRA lower. I have a complete bushy M4 and there is wobble. I have a RRA lower and had a RRA upper, there was no wobble. Now I have a CMT upper on a RRA lower and still no wobble. Sometimes new RRA rifles require a hammer to tap out the takedown pins until you put some rounds through them to loosen them up a bit. |
| My issued M4 in the IDF had wobble between the receivers (and it was a Colt; imagine that). There is nothing wrong with the rifle. I now own three complete LMT rifles and an LMT/Bushmaster mutt. There is a bit of play in them too, but not nearly like my worn, issue weapon. I have heard that Stag and RRA are machined a bit smaller in the lower receiver. This makes them very solid-feeling, but a bitch to assemble. |
Anyone have a link where I can buy the O ring ? |
Using Mega uppers and CMT uppers. I'm going to try the O-ring on one of them. |
That is interesting. The all Mega's that I have were tight to the point of being a pain to push the takedown and pivot pins. The pins have worn in and work nicely now, but the upper to lower fit is still tight. |
Would you like to trade?  I can push my pins out with no effort at all.  Actually, I just orderd two Stag that should be tight to the point of hammer and punch. |
THX That fixed the wobble totally ROCK ON man |
I will keep this post in my notes....never herd of the O ring trick. I dont have wobble issues either, but if I do......... 
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The JP pin is the fastest way to open up your holes and ruin your recievers. People buy these things and crank on them. These pins belong in the trash. If one comes across my workbench, it gets shitcanned. |
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