Rock River Arms M-4

[Intel_Airman]

I was talking to a shop here in town and they mentioned that Rock River Arms is having a huge problem supplying contractors overseas with a rifle that doesn't malfunction due to dust/dirt. He said that because RRA rifles are so accurate and built so tight they don't hold up well in the desert; and that they basically urge people to purchase Bushmasters here in town since we are in the same type of environment. Do you think this sounds right? The first thing that I thought was the shop makes more of a profit off of the Bushmasters than the RRA's. I just want a second opinion before I drop a grand on a Bushmaster.