No matter how many buzzwords your 'aluminium' alloy gun has it's still good ole powder cast Zamak 4 I'd rather decent ABS or Nylon/Glassfiber guns any day.My old Gundam model kits felt stronger than most of the metals used in airsoft gats tbh. Some plastic guns,like most airsoft G36s,even TM based ABS ones are invincible(Probably since the G36 was designed to be made out of plastic but whatever)
I've dropped my ABS VSR stock loads of times,even used it as a rung/handle to crawl out of a river- If it can survive being stepped on and holding my 65kg bony arse then it's grand in my book. I would have more confidence in it than even a Aluminium CNC PDi stock.