Description

Knight’s Armament KAC KS-2 SR-15 E3.2 14.5” Complete Upper
The Knight’s Armament SR-15 KS-2 Upper Kit is the same upper assembly found on the SR-15 KS-2 Carbine. The KS-2 extends barrel length and dwell time to maximize ballistic efficiency and gas tuning, while maintaining the SR-15’s signature reliability and refinement.
The KS-2 features a 14.5-inch cold hammer forged, chrome-lined barrel chambered in 5.56 NATO, free-floated inside the URX 6 M-LOK handguard, and equipped with KAC’s 3-Prong QDC Flash Eliminator. Designed as a drop-in replacement compatible with any mil-spec lower receiver, the KS-2 upper provides a balanced, versatile foundation for professional or enthusiast rifle builds.
With the continued evolution of low-power variable optics and suppressor technology, the 14.5-inch configuration represents a refined midpoint between maneuverability and ballistic reach. The KS-2 upper embodies that balance—compact enough for close work while retaining energy and stability for mid-range engagements.

Specifications
Barrel: 14.5″ (29cm), 1:7 Twist
Caliber: 5.56 NATO