San Tan Tactical Complete lower receiver parts kit for AR-15 are a great addition to your AR15 build. From amateur gun builder to seasoned expert gun smith, this lower parts kit is for you.  Just add your favorite Trigger, AR-15 Lower, Buffer Tube Kit (STT AR-15 Carbine Buffer Tube Kit – Mil-Spec – Enhanced QD), Stock and Grip and you are ready to complete your build.

NOTE: Fire control group and grip NOT included. 

Kit Includes:

1. Bolt Catch 
2. Bolt Catch Plunger 
3. Bolt Catch Spring 
4. Bolt Catch Roll Pin 
5. Mag Release
6. Mag Release Button
7. Mag Release Spring
8. Buffer Retainer Spring
9. Safety
10. Buffer Retainer
11. Safety Detent Spring
12. Safety Detent
13. Trigger Guard
14. Trigger Guard Roll Pin
15. Takedown Detent Springs
16. Takedown Detents
17. Takedown Pins

All parts meet or exceed MIL SPEC