20-piece Lower Parts Kit with standard trigger pins and standard safety

• Safety detent pin
• Safety detent spring
• Mag catch
• Mag catch spring
• Mag release button
• Bolt catch
• Bolt catch spring
• Bolt catch plunger
• Bolt catch roll pin
• Pivot pin
• Takedown pin
• Pivot/takedown spring (2 pcs)
• Pivot/takedown detent (2 pcs)
• Buffer retention pin
• Buffer retention spring
• Standard trigger pins (2 pcs)
• Standard safety selector
• Does not include fire control group, grip, or trigger guard