GWACS Armory Quality Standard Milspec Lower parts kit specifically for populating a CAV-15 MKII as non required parts are excluded. 

Set includes: Trigger, Trigger Spring, Hammer, Hammer Spring, Hammer and Trigger Pins, Safety Selector Switch, Safety Selectory Detent, Selector Detent Spring, Magazine latch, Magazine Latch Spring, Magazine Release Button, Buffer detent, Buffer Detent Spring, Bolt Catch, Bolt Catch Spring, Bolt Catch Plunger.   Does not include - Pivot and takedown pins

Does not include trigger guard, guard pins, pistol grip and screw as the CAV15 MKII does not require these components.