Knight’s Armament SR-15 E3.2 Bolt Assembly
KAC PN 122054
The SR-15 E3.2 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.
E3.2 Enhanced Bolt Features
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.
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 fail safe in the event that one fails during hard usage.
This is a complete bolt assembly with all internal parts installed. The E3.2 bolt is only compatible with SR-15s and KAC E3 barrel extensions.
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Hao Z. (verified owner) –
Great experience from Rooftop as always!
Robert (verified owner) –
Fast shipping and great packaging, what more can you ask for? It was my first time purchasing from them and was not let down. Excellent email communication of order received, order shipped, they also followed up with me to make sure that I was satisfied with their service. I will definitely buy from them again. Did I mention that they included a hand written post it note of how expensive gun parts can be… so they added a free pack of instant noodles to help me out financially on a free meal HAHAHA!