This is the CMMG AR-15 .223/5.56 lower receiver parts kit.

This kit includes:

• Takedown Pin
• Receiver Pivot Pin
• Takedown Pin Detent (2)
• Takedown Pin Detent Spring (2)
• Hammer and Trigger Pin (2)
• Hammer Spring
• Trigger Spring
• Disconnect
• Disconnect Spring
• Safety Selector
• Selector Detent
• Lock Washer
• Pistol Grip Screw
• Hammer
• Trigger
• Pistol Grip
• Magazine Catch
• Magazine Catch Spring
• Magazine Release Button
• Trigger Guard Assembly
• Bolt Catch
• Bolt Catch Plunger
• Bolt Catch Spring Pin
• Bolt Catch Spring
• Buffer Retainer
• Buffer Retainer Spring