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Page AR-15 » Build It Yourself
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Archived [ARCHIVED THREAD] - Bushy Upper on Colt Lower
Posted: 12/8/2003 5:30:02 AM EDT
Has anyone ever put a new postban M4 upper on a new Colt 6700 postban lower?  I am new to the AR15 stuff and wanted to make my 20" HBAR more nimble and thought about changing the upper. Any problems with doing this that anyone can see. BTW, I just checked and it looks like I have the same, smaller-diameter holes as the other makers, for the takedown pin, etc.

Thanks,

Ron

Link Posted: 12/8/2003 6:00:42 AM EDT
[#1]
Nope; if both pieces are small hole, just install away.

Link Posted: 12/17/2003 8:38:17 AM EDT
[#2]
Great, thanks a lot

Archived [ARCHIVED THREAD] - Bushy Upper on Colt Lower
Page AR-15 » Build It Yourself
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