Santa is a common gun that could be obtained during Christmas Event 2015 from the 2015 Christmas gun box. It can now only be obtained through trading since the event has ended.
After a successful purchase, you will be automatically redirected to a page to enter your ROBLOX username and be prompted to join our private server in MM2. You will then see an invitation for a trade(s) to receive your items. If you're confused, please watch the video at the top of our home page!