G&G GK74u accessories

[Ak1]

Hello all ive just recently purschased an g&g gk74u and im really please with it but the magazine it comes with is a bit of a pain the winding wheel is really recessed in so i thought about getting some flash mags but im not sure if it will fit the magazine i have a new style g&g ak it has a little nub on the front

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Also does anyone know where i can get accessories for this gun ie tactical handgaurd or even a tactical dust cover becuase as far as i know when you use the side mount you cant close the folding stock . Thank you.