So I have a G&G cm16 I bought some internals upgrades for nothing crazy mainly just compression parts. But I’m about to pull the trigger ( pun intended lol) on a cyma ak74 cmo47c version 3 gearbox. Which one is worth dumping money into for a decent dmr style rifle? I have heard some good reviews on the newer cyma aks. Full metal on the ak where as my cm16 is mostly polymer. Ak supposedly shoots high 300s out of the box.