Our Gun builders kit includes most of the necessary parts to build up your lower group except the commonly upgraded parts. Does not include Trigger Guard, Fire Control Group, or Pistol Grip.
Kit Includes:
- Bolt catch/roll pin
- Bolt catch plunger/spring
- Trigger/hammer retaining pins
- Safety, detent, & spring
- Magazine catch, spring, & release button
- Pivot/takedown pins, detents, & springs
- Buffer retainer/spring
**All parts meet or exceed mil-spec**
