Just got my 1st AR. Had (have) AK's up until now. Pretty excited to get to the range and get it sighted in and shoot it. Now, about to get on youtube to figure out just how in the hell this thing works and how to break it down and get it back together. I have a Spikes lower, but am wondering who makes the upper. This is the only mark on it. Does anyone know who's logo this is? Been on google digging, but cant seem to find anything. Thanks in advance.