Knights SR15 KS1 5.56mm Upper Receiver Assembly | 13.7" Barrel

The Knights Armament SR15 KS1 features a 13.7” cold hammer forged, chrome lined, 5.56mm NATO heavy profile dimpled barrel for higher volumes of fire. It 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 6 handguard. An E3.2 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. In addition to Knight's unique extractor shape that ensures more reliable extraction, the E3.2 bolt features dual ejectors — ensuring positive ejection when utilizing suppressors.

The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the KAC line of 5.56mm QDC Signature Reduction Devices.

Specifications:

• Barrel: 13.7" (29 cm) 1:7 Twist, Cold Hammer Forged, Chrome Lined
• Caliber: 5.56 mm NATO