air parts - upgrade ASG M15

[Blueboy]

Make: asg
Gun/Model: M15 S.I.R
Accessories: 
Condition: 
FPS: 
Splits/Swaps/Part Exchange: 
Price/Payment: 
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Hi Guys , I am wanting to upgrade my , nozzle , piston and piston head for a ASG M15 S.I.R any pointers would be great , I have the standard motor and gears in at the moment and just dont know where to start

 

[Hangtight]

Want to upgrade, or need to upgrade? If you're just looking to tinker there are better places to start. First step should be to take all the stock parts and make them work as well as possible, then you'll know what actually needs attention rather than just buying random parts and hoping that it makes a positive difference.

It's very easy to spend a couple of hundred quid and actually make a gun a lot worse.