The Desert Tech MDR Micro Dynamic Rifle caused quite a stir last year at SHOT.
Both GT and I wrote about it,
http://www.canadiangunnutz.com/forum/showthread.php/1020984-2014-Shot-Show-Desert-Tech-MDR
http://www.canadiangunnutz.com/forum/showthread.php/1020432-2014-SHOT-show-Desert-Tech-MDR-bullpup
and I wrote an article for Small Arms Review about it as well.
https://smallarmsreview.com/display.article.cfm?idarticles=2657
Since then, DT has made a series of small upgrades to the prototype. The first photo is the 2014 version.
The next three images are from this year, 2015.
I forget all the changes mentioned, but you can see there is a change made to the left side to allow a left side ejection now.
Also, there is a lever/button just forward of the magwell now, for mag release.
A second charging handle has been added to the right side, and both L and R are noticeably larger.
Both GT and I wrote about it,
http://www.canadiangunnutz.com/forum/showthread.php/1020984-2014-Shot-Show-Desert-Tech-MDR
http://www.canadiangunnutz.com/forum/showthread.php/1020432-2014-SHOT-show-Desert-Tech-MDR-bullpup
and I wrote an article for Small Arms Review about it as well.
https://smallarmsreview.com/display.article.cfm?idarticles=2657
Since then, DT has made a series of small upgrades to the prototype. The first photo is the 2014 version.

The next three images are from this year, 2015.



I forget all the changes mentioned, but you can see there is a change made to the left side to allow a left side ejection now.
Also, there is a lever/button just forward of the magwell now, for mag release.
A second charging handle has been added to the right side, and both L and R are noticeably larger.