Knights Armament SR-15 E3 IWS MOD 2 rifle with 16″ match grade alloy steel 1:7 twist

The SR-15 E3 CQB Mod 2 M-LOK from Knights Armament Company is a precision-engineered rifle built on Eugene Stoner’s operating system. This 16″ model features a chrome-lined, 5.56mm NATO barrel with a 1:7 twist, meeting military specifications. Its proprietary mid-length gas system enhances reliability, reduces recoil, and improves durability. The E3 round-lug bolt design extends bolt life beyond industry standards, while ambidextrous controls—including a bolt release, selector, and magazine release—ensure ergonomic efficiency for all users.

The CQB Mod 2 update introduces a URX4 handguard with M-LOK compatibility, reducing weight and improving cooling. A redesigned gas system minimizes leakage for consistent performance in harsh conditions, and the gas block is secured with a locking ring for added barrel rigidity. The two-stage trigger supports both precision marksmanship and rapid close-quarters engagements. Additional features include a QD sling mount and a streamlined design for enhanced handling.