I recently bought an Echo1 P90 and I need some help. It is all stock and practically brand new. I need help with the upgrades. I have about $150 to spend on upgrades and I'm wondering what to get. I would like to add some accuracy, keep the fps the same, and increase the rate of fire. The $150 also includes external upgrades as well. The only big external upgrade I really wanted was the angel custom extended but plate. Any advice is appreciated. Thanks.