Is a JG full metal MK5 bad internally? Will it last?

[Riuk]

I am in a bind. I could buy the G&G mk5 sportlIne and get good internal quality. But the ras and full metal body of the JG mk5 ras is just so tempting. But last time I bought a Chinese gun (dboys) it didn't last very long in terms of internals. And I plan to upgrade which ever mk5 I get but not for a while. And whenever I see a review for a JG mk5 they never really mention the internals. Do you guys think a JG mk5 will last? Or should I just go the safe route and get a G&G sportline?

[Ivan Daylovich™]

Mk5?

[Riuk]

mp5, they call it mk5, and i was calling it mk5 for some reason, idk,