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AR15.COM
10/18/2009 12:26:51 PM EDT
Are all barrels on this model 1/9?

Has anyone rebarreled one with a lighter profile bbl or 1/7 bbl?

Thanks.
10/18/2009 12:57:58 PM EDT
[#1]
All are heavy profile and 1/9 twist.

I have changed out mine with a lightweight 1/9 barrel and love it.

10/18/2009 3:03:39 PM EDT
[#2]
I am thinking of putting the lightweight  1/7 twist on mine later. but I really like it the way it is now though so maybe not.




10/19/2009 5:47:37 PM EDT
[#3]
one of you please sell me your 6721 barrel.  

thanks
10/19/2009 5:52:30 PM EDT
[#4]
I'm leaving the barrel just as it is on my 6721
10/19/2009 7:07:02 PM EDT
[#5]
Quoted:
one of you please sell me your 6721 barrel.  

thanks





why do  you want that HBAR for?  hell I will trade mine for the LT 1/7  twist colt barrel any day of the week.    then again.. its is crazy accurate ...
10/20/2009 4:43:39 PM EDT
[#6]
If I had a lt wt barrel shawn, id box it  and a bunch of Pmags to sweeten the deal.  I want to cut it down to 14.7, recountour to M4/restamp, then perm attach an A2 flashhider.

10/20/2009 6:56:27 PM EDT
[#7]
Quoted:
If I had a lt wt barrel shawn, id box it  and a bunch of Pmags to sweeten the deal.  I want to cut it down to 14.7, recountour to M4/restamp, then perm attach an A2 flashhider.



I don't think you can recontour a light weight barrel to a m4 profile because the barrel is too thin. I think the whole barrel is the same diameter as the m4 cutout, though I could be wrong on that. I should go measure it...
10/20/2009 7:42:39 PM EDT
[#8]
Quoted:
Quoted:
If I had a lt wt barrel shawn, id box it  and a bunch of Pmags to sweeten the deal.  I want to cut it down to 14.7, recountour to M4/restamp, then perm attach an A2 flashhider.



I don't think you can recontour a light weight barrel to a m4 profile because the barrel is too thin. I think the whole barrel is the same diameter as the m4 cutout, though I could be wrong on that. I should go measure it...



he means   the HBAR  on the 6721  not the LT barrel.  and I would make that trade with you in a heart beat
10/21/2009 4:38:32 PM EDT
[#9]
ugh, Im sure the only LT WT Colt pencil barrel I can get my hands on is the older, non M4 ramped/non F FSB.
10/21/2009 5:52:52 PM EDT
[#10]
just keep me in mind if you get a 6520 barrel