[element62skater]

so if i put in a modify 100..... what is that equivlent to for a systema.... a 120 roughly? im not familiar with modify springs..... what is the best spring (from what youve seen) to get and maintain a consistant fps of around 380.
so what your saying is i could get that spring.... and a new bucking cause the ICS one is awful and my internals should last a while? maybe a bearing spring guide to prevent twist... a new battery cause im running a cheap 9.6v right now and im thinking of running a high quality 8.4 instead maybe a 1400mah so it fits in the mp5 foregrip, although i do use a battery bag already.
i kind of want that angel silent head set cause right now its wayy loud.
and use your recomendation of .28s