Xtreme Gun Lower Parts Kit

All the parts you need to assembly your AR 15 lower receiver minus the buttstock assembly and pistol grip. Contains the following:
(1) Trigger USA made
(1) Trigger spring
(1) Trigger pin
(1) Hammer USA made
(1) Hammer spring
(1) Hammer pin
(1) Disconnector
(1) Disconnector spring
(1) Bolt catch
(1) Bolt catch plunger
(1) Bolt catch spring
(1) Bolt catch roll pin
(1) Fire selector
(1) Selector detent
(1) Selector detent spring
(1) Pivot pin
(1) Takedown pin
(2) Takedown detents
(2) Takedown springs
(1) Buffer retainer
(1) Buffer retainer spring
(1) Magazine catch
(1) Magazine catch button
(1) Magazine catch spring
(1) Trigger guard assembly
(1) Trigger guard retaining pin

(1) pistol grip screw