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AR15.COM
10/18/2008 7:30:25 AM EDT
a question from an  AR ignorant gun nut.
Will one manufacturers upper fit and work
on another manufacturers lower?
_____Y ____N ___________No idea

Any thoughts, I might put together
a new black project gun before the
shit storm fan is switched on in Nov.
10/18/2008 7:34:05 AM EDT
[#1]
Yes and no. I think the Colt lower have diferent size pins. But the rest are the same.
10/18/2008 7:57:57 AM EDT
[#2]
Si
10/18/2008 7:00:58 PM EDT
[#3]
That is correct.Colt has different pins.Other than that build away