What is needed for a reliable 350 fps upgrade

[TurtleBoyPW5]

i may get a m16a2 soon, and wanted to know what you all recommened i get in terms of upgrades with the fps being 350... ive done some reseach but have come up with conflicting data so now im just goin to ask...

thanx

[leanpocket25]

Well if u order from a site like uncompany or wgc i would suggest that u have them do one of there own upgrades. I would suggest the uncompany econmy upgrade plan 350 fps

[Hadoken]

Well, the basic 350FPS upgrade usually consists of an upgraded spring (Like for instance a Pdi 150%) and some metal bushings. Personally I don't believe you'd need anything else. (Guess a spring guide wouldn't hurt either)

Economy upgrade plans from most retailers are pretty much the same deal too: Spring + metal bushings.

Sure you could add more... gears, nozzles, pistons, spring guides for added peace of mind/security/durability...but for 350FPS I don't believe it's necessary.

[BFT]

When I upgraded my AK to 350fps, I replaced gears, spring, added a ball bearing spring guide, ball bearing bushings, and lubed everything well...I thought this would build an indestructable gear box....As I found out this weekend, the one thing I didn't replace failed. Moral of the story, Don't forget the piston, it's cheap and easy to replace when you have it apart to do the rest Just my opinion though