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Old March 13th, 2010, 13:44   #3
HKGhost's Avatar
Join Date: Nov 2009
Location: Mississauga, ON
Use the search. There is a review on both of them and their pros and cons. My understanding is:
G&G M4 REC (CAS) = lower end version
G&G M4 = regular version
G&G M4 Advance = regular but with upgraded internal parts
Top Tech (G&G) = high end version
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