The Keltec RFB (Rifle, Forward eject, Bullpup) is well known and has been available for some time.
The much newer RDB (Rifle, Downward eject, Bullpup) was announced at the previous years show, but only in prototype form.
This years Media Day was my first time to actually fire the RDB.
At the same time that the RDB was first announced, they also had another version on display called the M43.
This was meant to look like an old school design, wood stock and iron sights.
This version may still be released in the future, but has not been developed further as of yet.
One of the guns available to test had a can on the front. That seems to be a recurring theme this year. MANY vendors has suppressed guns at range day.
I'll try and get more photos and more details at the actual show. It was a bit noisy at the range. (Not every gun was suppressed!)