Includes:

• Trigger 
• Trigger Spring 
• Hammer 
• Hammer Spring
• A2 Grip
• Buffer Retainer Pin 
• Buffer Retainer Spring
• Trigger Guard
• Safety Selector 
• Bolt Catch Spring
• Detent Spring
• Bolt Catch Plunger
• Bolt Catch
• Disconnector
• Disconnector Spring
• Magazine Catch Spring
• Bolt Catch Roll Pin
• Magazine Release Button
• Magazine Catch
• Pivot Pin
• Selector Spring
• Safety Selector Detent
• Rear Take Down Pin
• Takedown Pin Detent