once u inject the uzi anibase renamed to M16A3 PVMLA into GUNS_M_AR go to ur combat arms game folder there should be a extra file in there named as GUNS_M_AR.reznew ( default location is c:nexon:combat arms, unless u moved it)
find the original file of GUNS_M_AR and rename it as GUNS_M_AR.rezbak
then rename the GUNS_M_AR.reznew as GUNS_M_AR.rez
ok then ur done im gona post some pics to help u here they are
the others ar'nt show as rez files in this pic cause it would be to massive to show but u still get the picture
thank me if i help ya