An1kii

sry for long answering so yes ive already check the hop up unit and it seems to pushing well but just in case i change the hop up bucking for a FRICTION PRO from QUANTUM and i was shooting 0.28 the problem is still there like the first 5/6 shot goes well but right after it drop right away at like 20 meters i dont know what it could be

Hi guys i've got a mk18 marui ngrs since like 2 years with not that much games with it and stock setting for everything except the battery and ive got a trouble with it, it seems that if i put the hop up full or low it didnt change anything ive took it apart check it and double check it and everything seems good can you know what could be the problem ? thanks in advance