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Posted: 8/28/2004 11:45:32 AM EDT
[#1]
They'll be probably a bit snug, but opening and closing a few times should make them nice and easy, with no loosness.
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Posted: 8/28/2004 12:29:59 PM EDT
[#2]
They will break in after a few hundred rounds.
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Posted: 8/28/2004 2:57:22 PM EDT
[#3]
RRA lowers are very tight even with RRA uppers. I had to use a mallet to make my last RRA M4gery go together. It loosened up after soaking a while in CLP and shooting.
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Posted: 8/28/2004 3:04:32 PM EDT
[#4]
Ditto on the mallet. I had to use a block of wood and a hammer to get them together and apart. Its also a pain to get them apart, to the point where I'm considering some dremel action. It was tight with two different RRA uppers and a Colt upper.
Hopefully a couple hundred rounds will loosen her up. |
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Posted: 8/28/2004 3:21:54 PM EDT
[#5]
Must be a tough one...Usually a couple rounds get her loosened up....  MT (mind in the gutter) |
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Posted: 8/28/2004 3:35:31 PM EDT
[#6]
The RRA lowers that I've owned haven't been relieved in the back for the upper's rear lug. Hard to explain without a picture, but the radius wasn't opened up at the very back to allow the lug to drop in and out freely.
It only requires a small amount of filing/shaping on the very rear sides of the upper's lug, but I don't think that should have to happen- I think RRA should open the cavity a little instead. |
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Posted: 8/28/2004 3:41:32 PM EDT
[#7]
Yup, that's exactly what I've experienced. Kinda disappointed. How do they fit their uppers on their factory guns? |
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Posted: 8/28/2004 4:14:13 PM EDT
[#8]
My feelings exactly. Filing new parts to make them fit is unacceptable in my book. I'm also not convinced that the tight fit does anything for you or your accuracy. IMHO/YMMV 
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Posted: 8/28/2004 4:40:59 PM EDT
[#9]
Thanks for the info. I went ahead and shaped the rear lug on one upper (CMT) mainly to see how much it would take. As mentioned above, it didn't take much but I wasn't too happy about the whole idea. These were my first two RRA lowers and probably my last.hinking.gif Got a bunch of Ameetec's on the way
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Posted: 8/28/2004 5:18:54 PM EDT
[#10]
Agreed...no need to fight with the damn things
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Posted: 8/28/2004 8:08:27 PM EDT
[#11]
I've only built one RRA rifle. Used a RRA upper and lower, and didnt have any trouble at all getting the two together. There is no play in them, but I certainly didn't have to force them or use a mallet!
-Hershey |
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