I bought a stripped M4Enhanced lower and an AP LPK minus the trigger. The flared magwell is a plus, the enhanced trigger guard another plus, I like how the edges are beveled into the trigger guard and the tension screw is a nice touch. They thread the safety detent hole and supply a screw in the LPK. I also like the threaded bolt catch pin vs a roll pin.

The LPK was nice enough too. I don’t know how the complete lower would work but I can’t see anything to give me a reason to pass.