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9/4/2009 7:08:32 PM EDT
Will a Knights M4/M16 QD NT-4 be long enough to take a 14.5" Colt barrel to a legal 16" if permanently attached? I would like to send a 14.5" barrel off to you for a pin and weld permanent attachment, but I am not sure if this FH is long enough. Any suggestions?

Thanks!
9/4/2009 8:42:03 PM EDT
[#1]
No it is not long enough, it needs to have about 1/4" of shims behind it to make legal 16". We can make up a custom shim though.
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