KAC SR-15 E3 Bolt, Assembled (P/N:20434)

E3 Enhanced Bolt Features:
Enlarged Bolt Face – Provides more positive engagement in the chamber and ensures proper seating upon cycling.
Rounded Bolt Lugs – Less prone to chipping or cracking than traditional square lug designs.
Reduced-Size Cam Pin – Allows for a thicker bolt web, strengthening a common failure point in the AR-15 bolt design.
Enhanced Reliability Extractor – Shaped like a “T” this extractor’s pivot point is shifted forward to apply constant pressure on the case rim and reduce extraction failures. Its dual extractor springs provide a failsafe in the event that one fails during hard usage.

This is a Complete Bolt Assembly with all internal parts installed. The E3 Bolt is compatible with Knight’s Armament E3 Barrel Extensions only.