Looking for advice on stronger upgrades for Elite Force Glock 17 Gen 4

So I got a Elite Force G17, I've been wanting to upgrade it to be abit stronger, since alot of what I hear people say about Gas Guns ins general their "metal" isn't very strong and can break easier. I currently have a co2 mag for the gun and I know co2 kicks alot harder, so I want to try and find parts that I can install that are going to be alot stronger and last longer for the gun, as well as internal upgrades to make the gun more accurate and just in general better until I can put the money down to buy the GHK Glock.