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5/26/2007 3:16:23 PM EDT
What type of tube is better, Commercial or Mil-Spec? What brand use what tubes?
Thanks David C
5/26/2007 3:25:18 PM EDT
[#1]
mil-spec

As far as brands I'll take a stab and will probably leave a few out.

Colt, LMT, Stag/CMT. and not sure if any others do.

Normally ppl buy their lowers separate and install their own receiver extension such as Stag/CMT, VLTOR, or LMT.
5/26/2007 3:28:54 PM EDT
[#2]
Mil-spec

5/26/2007 3:34:33 PM EDT
[#3]
mil-spec is the way to go
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