There's been another thread where we've asked for a sub forum to be added for HPA users.
HPA wise I've had a few different types now some good some just shocking.
Wolverine SMP was first it was ok but nothing special.
Tippmann M4 second loved it great design for a Tippmann first into Airsoft.
Glock 17 tapped mags which I still have good fun even better if you fully convert the mag to self feed.
Third WE GBBR M4 full HPA internal conversion. Bad bad bad, never again. A person makes them under Alyan Airsoft just crap save your money.
Lastly for now, Polarstar Jack, love it. Nothing more needs to be said really.
I would recommend anyone who wants to get into HPA in taking their time to pick which setup they want and which weapon ey are going to use. My SMP I rushed into it knowing nothing it was ok but was constantly tweeking it. Whereas my P* Jack I took a few months picking a donor weapon to buy. HPA is certainly not for short pockets (no offence to anyone) but it isn't.
There's a number of us on this forum with experience which we can all help anyone with any questions.