Just be aware when you get a metal body, you do not always get the hardware for it, it's usually just the body. Armalites (M4/M16) for example typically do not come with body pins, dust cover, fake bolt, trigger guard, sights, charging handle & spring or mag release. You have to get these either from the gun you're replacing the body on (providing they're not cheap shit and are compatible) or from hardware kits.
ASC & RAAT Age Verifier for Central Alberta
Authorized G&G Dealer.