I have a t4-18 (gen 2 ) and i am thinking of buying a magbul M110 spring to bump up my FPS as im currently getting getting around 300-310 fps. Will this be ok without upgrading the internals?
Does anybody know where i could get a charging handle set for my t4-18 and what would be the best battery to be running i am currently running a 8.4V 1600 mah Nimh ?