The VC Target Frame is CNC-machined from aluminum alloy. It is a complete frame with the following features: Accurizing Kit (includes Extended Bolt Release, CNC-machined Target Trigger, wire EDM-cut Target Hammer and Target Sear), CNC-Machined Disconnector, Built-in Spring-Loaded Magazine Ejector (MKIII model only) and Extended Safety. The VC Frame is shipped with a clean, crisp 2.25lb trigger pull. The magazine disconnect has also been eliminated from this frame