Everything you need to build out your lower receiver. The full lower parts kit includes:

Buffer retainer

Buffer retainer spring

Takedown pin spring

Takedown pin detent

Takedown pin

Safety detent

Safety detent spring

Piston grip

Lock washer

Pistol grip screw

Hammer

Hammer spring

Safety selector lever

Bolt catch

Bolt catch roll pin

Bolt catch plunger

Bolt catch spring

Magazine catch

Pivot pin detent

Pivot pin spring

Pivot pin

Disconnector spring

Disconnector

Trigger

Trigger spring

Trigger guard assembly

Trigger guard pivot roll pin

Magazine catch spring

Magazine release button

Hammer pin

Trigger pin

American Made & a Lifetime warranty!