What else do I need?

I bought this stuff ( with another vest and holster for the pistol, and a water backpack, and another AEG) for $200. It looks like the M4 is 370-400fps and its electric. The pistol is air powered, and I can't find much about it online. It feels pretty powerful.

What I have: Air pistol, 2 mags, holster AEG M4, 5 mags Vest with nothing on it Water backpack Boots

Can I bring the pistol with me to an airsoft arena?

What magazine holders are good? I have 5 total magazines for the M4. And 2 total magazines for the pistol.

What would you recommend for eye protection? I was looking for goggles with a mesh to cover my mouth/cheeks.

Is there anything else I need?