Great pistol upper - Daniel Defense DDM4 V7 S 11.5in 5.56 Complete Upper Receiver w/ Flash Hider

This upper is fantastic with the exception of two things, the QD attachment point and changing handle. The QD attachment point is not milled out all of the way on the inside and causes my QD point to rotate and fall out. (currently, it has four small grooves instead of one large one) The charging handle seems to be a cheap mil-spec one. It rubs on the top of my lower and has become gouged by my buffer tube castle nut.

So far this upper has been great with the exception of those two things. It has functioned flawlessly with the included BCG and a CMMG 22LR conversion.

There needs to be a warning included in the box about attaching the included verticle grip to the upper when it is on a pistol lower.