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Old February 16th, 2009, 14:14   #45
delta76's Avatar
Join Date: Dec 2008
Location: Toronto
I've spoken to Ken from 007 and learned that the M4 Carbine's that he is selling are not CAS guns, they are direct from G&G and have aluminum alloy receivers and various upgraded internals as compared to the plastica series being sold by CAS which provides to many retailers. The upper receivers on the mach 1 models are magnesium alloy and have slightly different internal specs.
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