I got one in the mail the other day. Loaded it up with Dasher rounds and it took it to the range. It ran very well. I have not run it in dusty field conditions yet. So far I am quite pleased.
Ran mine for 2 days in windy Nebraska with dust which caused more than a couple mag issues with fellow shooters (AICS and ARC). I was shooting 6 Dasher, didn't clean the mag at all and it ran flawlessly! I couldn't be happier - have had more than my fair share of mag issues with Dasher in the past couple years. MDT hit a home run with this one!!