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11/21/2006 5:58:56 PM EDT
As I understand it, RRA buffer tubes are not mil spec, so I can't upgrade my collapsible stock to anything else. I want to get a magpul CTR or UBR. What kind of buffer tube can i get on my RRA to accept these types of stocks? Thanks in advance!!
11/21/2006 6:56:21 PM EDT
[#1]
Stag, CMT, VLTOR, Colt...  and I'm sure a few others.
11/22/2006 4:27:59 AM EDT
[#2]
Any tube will fit. Its the diameter of the tube that is in question. They will all thread into your lower, RRA or not.
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