GEISSELE AR15/M4 Standard Lower Parts Kit

The Geissele Standard Lower Parts Kit includes all the internal parts necessary to complete or rebuild your lower receiver. This quality mil-spec kit features an improved safety detent and our specially designed Posi-Snap safety, which provides the end user a satisfying and positive tactile feedback when engaging the safe or fire position. Specification: 1. Takedown Pin & Pivot Pin Detents (2) 2. Takedown Pin & Pivot Pin Springs (2) 3. Takedown Pivot Pin 4. Bolt Catch Plunger 5. Bolt Catch Spring 6. Bolt Catch Coiled Pin 8. Safety Detent 7. Mil-Spec Bolt Catch 9. Buffer Retainer 10. Buffer Retainer Spring 11. Safety Detent Spring 12. Takedown Pin 14. Magazine Release Spring 13. Magazine Release Button 15. Posi-Snap Safety 16. Magazine Catch 17. Coiled Trigger Guard Pin 18. Mil-Spec Trigger Guard Compatibility: Compatible with AR-15/M4 models according to Mil-Spec diameters Not compatible with HAENEL or HECKLER & KOCH models MADE IN THE USA