Couldn't tell you, if you let me know some of the identifiers between 2012 & 2013 models I can look for you ^^Interested in the demon, is it fully working and is it a 2012 or 2013 model?
Picked this up only a few months ago as it was a great deal for a Marker - Just never going to get used with me. Fantastic overall condition.
Aired up & shot over chrono in December, no issues, battery could probably do with replacing but it charges & ended the day's play on 60%. Fully stripped & cleaned by myself not long before that.