The SR-15 E3.2 Enhanced Bolt is engineered to set new standards for durability and longevity, even under the most demanding conditions. Equipped with dual ejectors, it greatly reduces wear and extends its lifespan compared to traditional single ejectors, maintaining consistent ejection force through optimized ejector placement. A vibration-dampening o-ring works in harmony with the extractor, ensuring constant pressure of the extractor claw on the case rim during both extraction and ejection. Stress relief features in the lugs further enhance durability, while its radiused lugs and smaller cam pin hole make it the most robust AR-pattern bolt available. The dual-spring extractor offers superior leverage, effectively addressing durability and function issues often seen in short-barreled carbines. This proprietary bolt is specifically designed for SR-15 and SR-16 rifles.
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Knights Armament Company
Knights Armament Company
