The KAC E3.2 bolt is now shipping with SR-15 5.56mm rifles and upper receiver kits.

The E3.2 bolt was purpose-built to provide extended service life and enhanced reliability in all conditions. The prominent dual ejectors ensure clean and consistent ejection even when a traditional high-backpressure suppressor is used. Refined lug geometry and optimized material selection ensures lug durability in excess of even the industry-leading KAC E3 bolt. A Viton O-ring prevents extractor vibration and lift, and a hard chrome exterior simplifies cleaning and maintenance.

For use with the KAC E3 barrel extension.



  1. Wild, wild west says:

    Somebody else used to manufacture an enhanced bolt with “lobster tail” extractor, maybe LMT?


    1. Shawn says:

      I believe it was LMT


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