I got a new AR-15 issued to me from my department. They made me trade in my Bushmater for a Daniel Defense M4 CArbine 5.56mm. Never heard of this brand of AR. It has a quadrail and rear flip up sights. It is very light. Has 30 rd Magpuls with it. Just wanted to know if anyone has experience or heard good or bad things with a Daniel Defense AR-15's?