The Knights Armament 5.56 NATO Win Bolt Assembly Kit With Dual Ejector For SR-15/16 is a purpose-built upgrade for shooters running KAC SR-15 or SR-16 rifles with E3 barrel extensions. This complete E3.2 bolt assembly is engineered for long service life, smoother operation, and more consistent ejection, especially when used with suppressors or high round counts.

Designed specifically for KAC’s proprietary E3 system, this kit includes the SR-15 E3.2 bolt, firing pin, cam pin, and spare extractor components, giving you a ready-to-install solution for refreshing a hard-used rifle or completing a premium build. Dual ejectors, an enlarged bolt face, and rounded lugs work together to enhance reliability and reduce wear, making this assembly well suited for intensive training, range work, and general-purpose use. Knights Armament’s reputation for precision machining and thoughtful engineering is evident in every detail of this compact but critical component.

Key Features:

• Manufacturer: Knights Armament
• Model: SR-15/16 E3.2 Bolt Assembly Kit With Dual Ejector
• Caliber: 5.56x45 NATO
• Condition: New
• What's In The Box: SR-15 E3.2 bolt, firing pin, cam pin, spare extractor springs, spare extractor O-ring
• Weight: 1.5 oz
• Length: 3.5 inches
• Width: 0.9 inches
• Height: 0.4 inches