Upgrade

[Armyjoe127]

I have a classic army m15a4 cqb sportsline premium what can i do to improve its performance and at what cost , thx

 

[Russe11]

Why does it need upgrading?

 

[sunstar]

1: Sportsline models come with plastic bushings on the gears ... Change them before the gun fails!!!

Instead of mking a long list with details ( That a going to be long and complicated ) I will reccomend you looking at som upgrade "guides" .. like this one...

http://airsoft.spells.dk/Guides.cshtml?Page=AEGUpgrade_Page1