hey guys, just got this new KM4s Tactical last wednesday. mopic hooked me up. just got a quick question about putting a silencer, how do i get the orange tip off? any advice please! also, i got this trigger guard from airsoftparts just wondering how to re-place the original one? is it possible to change or relocate the battery compartment? im thinking of putting the battery to the butt stock instead of having it to the front. thanks.