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Posted: 6/16/2003 8:08:44 PM EDT
I remember someone said they were out of spec., is this correct?

Thanks,

0351
Link Posted: 6/16/2003 8:12:15 PM EDT
[#1]
I think they are in spec.

ARMS SIR's fit.


Which is a good as test as anything else.
Link Posted: 6/19/2003 2:58:23 PM EDT
[#2]
The Lo-Pro uppers w/o the brass deflector and forward assist are supposedly a little higher than normal flat-tops, but as far as I know the regular flat-tops are to spec.
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