Had my heart set on getting one after watching the PTS video saying the receiver was "billet", but the video review by an independent reveals it is pot metal with design flaws and a proprietary Keymod rail system.
PTS says billet..... Not!
PTS Mega Arms MKM AR15 (GBB) introduction! - YouTube
Full video review
PTS Mega Arms MKM Full Review (Airsoft)( Description Has Time Marks) - YouTube