T he E3 Enhanced Bolt from Knight’s Armament features a number of components designed to make this bolt the most durable and reliable bolt available. It is a proprietary bolt specifically designed for our SR15 and 16 models.

Operating with a multi-lug E3 bolt, this direct impingement AR-style weapon delivers flawless function in challenging shooting conditions with a service life that far surpasses others in its class. For range shooting or tactical engagements, there’s no reason to settle for second best.

The Knights Armament SR-15 E3 Mod 2 Series rifle offers AR aficionados and first-time owners with a high-quality, semi-auto rifle platform that enables users to do everything they need, whether it's precision shooting or close-range rapid fire.

Featuring a 16 inch chrome lined barrel, a URX 4 M-LOK handguard, a two stage trigger, a three-pronged flash hider, and an overall weight of 6.55 pounds, the Knights Armament SR-15 E3 MOD 2 is versatile and rugged, capable of handling dynamic situations.

The SR-15 E3 MOD 2 series’ 5.56mm NATO barrel is manufactured for military grade durability, and is free-floated inside a URX 4 M-LOK handguard. An improved E3 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard.

Dec 27, 2018 · Knights Armament Co. looked to improve the AR15 platform and smashed it out of the ballpark with the SR-15 E3 Mod-2 series of rifles. I truly think the SR-15 rifle is the best you can get in the over-saturated AR15 market.

Knight’s SR-15 Light Precision Rifle Mod 2 is the answer for 5.56mm shooters who want a lightweight match weapon system.

The SR-15 E3 MOD 2’s 14.5” chrome lined, 5.56mm NATO barrel is manufactured to military specifications, features a proprietary mid-length gas system that increases reliability and durability while also reducing felt recoil, and is free-floated inside a 13” URX 4 handguard.

Knight’s Armament SR-15 CQB 11.5″ Mod 2 M-LOK SBR – E3.2 Bolt KAC PN 31952. The SR-15 E3 MOD 2’s 11.5” chrome lined, 5.56mm NATO barrel is manufactured to military specifications. An improved E3 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard.

The Knight’s Armament SR-15 (Stoner Rifle 15) is more than another AR with enhanced furniture. Beginning with the E3 Enhanced Bolt which features an enlarged bolt face, rounded lugs and thicker bolt web for improved durability, the SR-15 delivers quality and …