Products Included: (1 each - 13 total pieces in the package) A) Aluminum Flat-Faced Forward Set Trigger Metal Frame Specific Safety included B) Apex Forward Set Sear Actuator C) Apex Fully Machined 2-Dot Sear D) Ultimate Striker Block Kit (Striker Block, Spring and Apex Rear Sight Tool) E) Forward Set Spring Kit for M2.0 (Heavy Sear Spring, Duty/Carry Sear Spring, Heavy Trigger Return Spring, Duty/Carry Trigger Return Spring, Polymer Slave Pin, and Sear Plunger*) *You must install the Apex provided Sear Plunger with the trigger kit. We include a Sear Plunger with this kit, though the factory configuration does not utilize a Sear Plunger. The Orange Spri Mfg: Apex Tactical Specialties Inc