The term upgrade is a rather loose term. What is your ultimate goal of your upgrade? To achieve more FPS, more rounds per second or simply to prolong the life and enhance the durability of the mechbox?
For a broxa, I would replace its bushings if they are not already metal, even if they were I would replace them with something that was made from a quality reputable company.Aside from bushing I would also recommend replacing everything related to its compression system and hopup system. So that means new cylinder, cylinder head, air seal nozzle , piston, piston head and a new hop up. Since your in there you might as well toss in a bearing spring guide as well.
Just because there has been a lot of attitude lately. First person who posts a buy a better gun comment gets an infraction.
"Its only a little bit on fire"
Last edited by TokyoSeven; November 21st, 2009 at 23:52..