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Posted: 12/20/2009 5:35:10 PM EDT
[#1]
I don't know that RRA makes a mil. spec buffer. I could be wrong.
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Posted: 12/20/2009 5:38:41 PM EDT
[#2]
They don't...commercial only.
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Posted: 12/20/2009 5:45:01 PM EDT
[#3]
Yes, RRA has always used the "commercial" diameter receiver extension.
Mil-spec might be available from them as a custom order. |
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Posted: 12/20/2009 6:01:06 PM EDT
[#4]
For you there is no real difference in Mil Spec or Commercial tubes. They are a few thousands of an inch different. There is a difference in the angle of the end of the buffer tube, but again, functionally no different.
I have both commercial and Mil Spec tubes on the various rifles I have. I can't tell any difference between them. Its just what the maker decided to use. |
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Posted: 12/20/2009 8:33:39 PM EDT
[#5]
Yep. I've researched this issue and it seems that commercial tubes on RRA uppers is common. I knew about the slight diameter difference and the angle at the top of the butt on the commercial spec, but, I still have not come across any reason that there are two versions. I suspect some engineer had a reason ... I sure wish I knew what they were thinking ... Thanks for the help!
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Posted: 12/21/2009 4:40:55 PM EDT
[#6]
It is less expensive to cut the threads into the larger diameter commercial tube. There is slightly less thread engagement with the commercial tube but the difference in strength is neglible.
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