All of the changes are listed here:
-Black (grey) rod firing pin (instead of a yellow one).
-Stock. (Credit for this part goes to Shane0317)
-More comforatble handle. (Not the best, but a lot better then the old one.)
-Trigger mod; is more reliable and can hold more bands.
-Dual firing pin guide.
-More effecient rubber band mounts. (Can hold 4 rubber bends without decreased reliability.)
-More Stable pump.
-Crappy iron sights. (Hey, it's still better then nothing!)
This knex gun has won the first prize in the seventh Random Knex Challenge, formerly hosted by Hiyadudez, now hosted by DJ Radio. This knex gun has more range then the Cathalist Mini Launcher while being roughly 15 times smaller! :-D I hope you are impressed!
PS: Cretdit to Hack124x678 for the original. Credit to Shane0317 for the stock. Credit to Infinnion for the handle. Credit to BakenBitz (AKA "Atlas") and Mepain for the turret.