This rifle never really took off, and now ZEV has discontinued it, but it was always my favorite rifle in their line up. The gas block uses a castle nut to secure it to the barrel (just as gud as KAC!) meaning no pressure points on the bore from set screws or pins. Wedge Lock rail, excellent Schmid trigger, and a really nice matte finish compared to the shiny Core Elite series. They were a bargain at MSRP, but now they’re at cost!