With everything you need for a complete lower, including every spring, pin, the XTS LOWER PARTS KIT makes your rifle truly complete by including the all-important Safety, Mag Catch, Hammer and Trigger, Take Down, and A2 Standard Grip.

Components:
Disconnector Spring
Hammer Pin & Trigger Pin
Selector
Selector Spring
Selector Detent
Magazine Catch
Magazine Catch Spring
Aluminum Magazine Catch Button
Bolt Catch
Bolt Catch Detent
Bolt Catch Spring
Bolt Catch Roll Pin
Take Down Pin Take Down Detent
Take Down Detent Spring
Front Pivot Pin
Front Pivot Pin Detent
Front Pivot Pin Detent Spring
Polymer Trigger Guard
Trigger Guard Roll Pin
Buffer Retainer Detent
Buffer Retainer Spring
A2 Pistol Grip
Pistol Grip Screw
Pistol Grip Lock Washer
Trigger
Trigger Spring
Hammer
Hammer Spring
Disconnector