My favorite gun in the Jak games was the Yellow Blaster, it was strong, ranged and it just sounded good, so I used those sounds to replace the Sniper Rifle! So..uh... Enjoy! :D
Playing Jak 2 you learn a certain combo. A combo feared throughout the lands. X+O+R1. A fierce move with a fierce gun. The Yellow Blaster. That's literally the only way to make it through the game, and I'm not even going to talk about how they made the gun OP in the third game. That Beam Reflexor destroyed everything in it's path.