Takedown & Pivot Pin Assembly includes Takedown Pin Pivot Pin two Takedown Springs two Takedown Detents. Bolt Catch Assembly includes Bolt Catch Bolt Catch Detent Bolt Catch Detent Spring and Bolt Catch Roll Pin. Magazine Catch Assembly includes Magazine Catch Magazine Catch Button and Magazine Catch Spring Safety Selector Assembly includes Safety Selector Selector Detent and Selector Spring. Enhanced Polymer Trigger Guard Roll Pin set screw and Hex key. *NO FCG grip or stock.