Aero m5 build - TRYBE Defense LR-308 DPMS .308 Complete Bolt Carrier Group (BCG)

After seeing the price of this product and the price of other competitors I decided to try it out. Out of the box it looked nice, no scratches, scuffs, dings nothing. Fit smoothly into the upper, I had problems with my charging handle but that's an Aero problem. I took it apart oiled and lubed it up, as you always should. Fired a shot and it didn't eject all the way, tried another round the same. Decided that maybe it just needs to be broken in. After about 10 rounds it was cycling perfectly. Good deal, just needed to be broken in. I understand that other people have had problems. But I have yet to and I have put probably well over 200 rounds through it at both high rates and low rates of fire. For the breaking in issue that is my sole reason for the 4 star.