TBB vs. Stock Marui Barrel?

[Queboo12]

Sorry for posting another thread, this one being a topic discussed quite frequently however can't really find anything on here similar, however is it really worth replacing the barrel on my stock Tokyo marui l96 barrel (which I have no clue on the dimensions etc. of it however heard it was one of the better stock barrels you get) with a say Laylax 6.03 barrel? Naturally, it will improve on accuracy however are there any other significant benefits to the gun which it may bring, justifying the money on it compared to a good ol' stock barrel? And will the better grouping/ accuracy be noticeable/significant over it? I'm more lenient on sticking with what I got for the mo and can't see it doing anything dramatically different to change it positively, however thought i'd see what you guys say
Cheers for the help,
Regards