i was wondering what kinda level of external upgrades could a g&g combat machine take?, specifically a new stock or a new hand guard?
also: on zero one, it gives the option to add m100 springs and bushings, what would the fps be with and without an m100 spring. and what sort or range does a factory standard have????????????????
also: on zero one, it gives the option to add m100 springs and bushings, what would the fps be with and without an m100 spring. and what sort or range does a factory standard have????????????????
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