The KAC E3.2 bolt improves upon the durability and functionality of our renowned E3 bolt design, directly addressing ejection performance, specifically when using a suppressor with a short-barreled carbine. The lower receiver has been updated with a …

KAC - Knight's Armament SR-15 E3 Complete Bolt Assembly Proprietary bolt for the SR-15 E3 IWS with rounded locking lugs. Includes a complete bolt with extractor, ejector and gas rings. NOTE: Will not fit in any gun/barrel other than Knight's Armament SR-15 with E3 barrel extension.

The E3 Bolt is designed with a thinner Cam Pin and Firing Pin whose overall size has been reduced. The thinner Cam Pin allows for a thicker bolt web which is a common failure point in normal bolts.

The SR-15 E3 Enhanced Bolt features a number of components designed to exceed expectations for durability and service life, even when exposed to extreme and unrelenting conditions. It is a proprietary bolt designed specifically for use in SR-15 and SR-16 rifles.

The Knight's Armament Comoany E3 bolt, famed for its extraordinary robustness and functionality, leaves little room for enhancement. Its radiused lugs and reduced diameter cam pin hole render it the most durable AR-pattern bolt known to date.

It is a proprietary bolt designed specifically for use in SR-15 and SR-16 rifles. Dual Ejectors – Provides more positive ejection for increased reliability with suppressors. Enlarged Bolt Face – Provides more positive engagement in the chamber and ensures proper seating upon cycling.

Its radiused lugs and reduced diameter cam pin hole render it the most durable AR-pattern bolt known to date. The dual-spring extractor, featuring improved leverage, adeptly resolves extractor durability and operational issues commonly encountered with short-barreled carbines.

Jul 8, 2022 · This kind of bolt is now shipping with KAC’s SR-15 5.56 mm rifles and upper receiver kits. Here’s how KAC describe their E3.2 bolt: The E3.2 bolt was purpose-built to provide extended service life and enhanced reliability in all conditions.

Buy the KAC E3.2 Chrome Bolt, an upgrade to standard M16 bolts. This KAC E3.2 Bolt is finished in hard chrome and features dual ejectors for increased reliability.

Jul 5, 2022 · 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.