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Posted: 2/21/2006 11:48:40 PM EDT
I have seen a lot of talk about Mil-spec Buffer tubes and Non-milspec. Especially when adding new collapsable stocks like Vltor or Crane. What is the difference in actual measerments?
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Link Posted: 2/22/2006 3:52:53 AM EDT
I don't know the actual numbers. I'll try to find them for you. But basically you're talking about the outside diameter of the tube. The Mil-Spec tube is slightly smaller.
Link Posted: 2/22/2006 4:03:22 AM EDT
keep in mind that the buffer is build for the tube and the spring.
you have to keep them together and not mix and match.

but then again. some folks make special buffers like extra heavy etc. buffers to solve issues with some problem child ARs
Link Posted: 2/22/2006 4:04:15 AM EDT
IIRC Colt/mil-spec = 1.148
non mil-spec = 1.165

Mike
Link Posted: 2/22/2006 4:05:20 AM EDT
*Colt, LMT, and CMT use Milspec buffer tubes.

*RRA, Bushmaster, Armalite, etc. use the NON-Milspec tubes.
Link Posted: 2/22/2006 6:20:13 AM EDT
Thank you for the information. I was beginning to wonder if the buffer tube thing was a marketing gag by some of these companies, just so you would spend the extra money for their parts.
Link Posted: 2/22/2006 6:30:05 AM EDT
Actually the mil-spec Stag/CMT is cheaper then the non-spec Bushmaster. $65 vs $99.
Link Posted: 2/22/2006 7:04:55 AM EDT

Originally Posted By hk940:
keep in mind that the buffer is build for the tube and the spring.
you have to keep them together and not mix and match.

but then again. some folks make special buffers like extra heavy etc. buffers to solve issues with some problem child ARs



If you are saying that the buffer and spring are not interchangable, then you are wrong.

H, H2, 9mm have nothing to do with the buffer tube dimensions. (they are both the same inner diameters).
Link Posted: 2/22/2006 7:17:12 AM EDT
[Last Edit: 2/22/2006 9:54:32 AM EDT by Gunzilla]
seems I answer this like once a week... which is good, because I never have to search past 30 days to find it again

Buffer Tubes

I should take some pictures and do a "Receiver Extension Tube Primer"
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