Well MB05 upgrades

I decided to start upgrading my gun, but don't quite know what to get. I'm new to airsoft so any expert suggestions are much appreciated. I'm thinking of the HP hop up and the Laylax pss2 m190 spring. I'm also looking at spring guides, but am totally clueless.
tell me what you think of those and if theres anything else i could use.
Thanks

Well, I can't really help you much, but I own a WELL MB05 and it has been shooting incredible stock, I have been hitting body sized targets out to 300 feet,.. Stock.. So this gun is pretty incredible on its own, if you got it brand new and it is shooting bad though, unscrew the barrel and use a cloth or napkin of some sort and clean your barrel out because it is FILLED with grease and will make your accuracy absolutely terrible!
I know it did mine and for the first week and about 2000 bb's through it, I finally realized that was the problem, it is now shooting straight and hard, but Im sur that one of the airsoft snipers here will be able to solve your problem for you...

BTW Everyone! Im back! to some extent

I have to say a Tight Bore Barrel thats 6.1mm this increases accuracy, distance, and the FPS,
I new firefly Hard hop up bucking also helps. Yes the spring is a good idea but make sure your spring guide can handle the extra power, if it can't then get a new spring guide.Also get a new trigger assembly after a while thats a metal and not plastic, plastic will crack in cold weather, you may want to add some extra weight to the butt of the stock this will stabilize your shots more even if there is no recoil it makes it easier. I nice little cheek rest and a new butt pad so it's more comfortable

for the externals a Harris Bi pod is a good idea to and a more powerful scope.

These are listed from first to last because it will cost you a pretty penny if you get them all at once, at least 200 to 650 depending on the quality they are.

hey im new to everything and i just bought an mb05. to help my search can you direct me to the sites where i can get these parts.

any help appreciated

thanks