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Posted: 12/19/2005 10:12:12 AM EDT
Since I can't garner any interest in my Colt 6721 upper, Im wondering if I can cut down the barrel to 14.5", pin on a flash hider and/or turn it down to m-4 profile? Will cutting into the chrome lining, or crowning it, cause it chip away? Has anyone done this?
Link Posted: 12/19/2005 10:14:38 AM EDT
If done right barrels can be reprofiled or cut down w/o any loss in accuracy, nor does the chrome 'flake' off.

Several vendors on this board can do the job right (ADCO, AR15Barrels.com, Kurts Kustom).
Link Posted: 12/19/2005 10:23:03 AM EDT
Link Posted: 12/19/2005 10:37:23 AM EDT
I was worried about haveing my barrel cut down and all I wanted a Bird cage put on my 16 barrel without adding to length! I sent it to KURT and Everything work out great
Link Posted: 12/19/2005 10:54:59 AM EDT
The crown is key. Had a few .308 barrels chopped down by professional smiths.
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