Dear Ankur Sharma, thanks for your message, we have received your email and replied.
For exchange extra gun for fighters, please note that only a fighter without a default extra gun could be installed by any extra gun you like. And we are sorry that the current version can not exchange extra gun for any fighter, but we really thanks for your opinion and we will take a discussion internally about adding a new feature to change extra gun for a fighter.
For gift code, sometimes we will organize some activities providing gift codes as rewards on Facebook. Please follow us on Facebook you would get more updated news about the activities of iFighter 2.
here is the facebook link for you:
Thanks for loving our game. If you like, you could also share with us your thoughts about the game from time to time, so that we could discuss your opinions in the our product team so that we could keep updating the game to make it better and better.