what should I put on my minimag

[Cmyyard19]

I just bought a minimag and I was wondering what upgrades I should put on it?

[pb69]

Put a forgrip, new trigger frame, kapp dz II, nitro. Stcky grips.

[SIGSays]

12v revvy, nitro tank, if you get a kapp dz2 you need a tank adapter, i suggest a on/off one..... don't upgrade the internals stock is the best....... but yeah i am using an ans bolt....... performance is the same but i already set up the power tube to work with the ans........ get also a powertube spacer kit an agd one not ptp..... and get a quick twist velocity adjuster, i like the ans one the most

[Halliday]

In order of importance:
HPA/nitro
12v Rev/Rico
new barrel

[omni]

"get also a powertube spacer kit "

What's that, what does it do/look like? :)