Knights Armament 5.56MM SR-15 KS-2 14.5" Upper Receiver Kit - 121436

Elevate your AR-15 build with the Knights Armament 5.56mm SR-15 KS-2 14.5″ Upper Receiver Kit, a pinnacle of tactical engineering designed for demanding shooters who refuse to compromise on reliability and precision. Crafted by Knight’s Armament Company (KAC), renowned for military-grade innovations, this upper delivers exceptional performance in high-stakes scenarios, ensuring smooth operation and enduring durability that outpaces standard AR-15 uppers.

Key Features

• Cold Hammer Forged Barrel: 14.5-inch length with 1:7 twist rate, chrome-lined for superior accuracy, heat resistance, and longevity—ideal for sustained fire without degradation.
• URX 4 M-LOK Handguard: Free-floating design with M-LOK slots for seamless accessory mounting, providing a lightweight, ergonomic platform that enhances handling and modularity.
• E3 Enhanced Bolt Carrier Group: Proprietary E3.2 bolt reduces friction and wear, promoting reliable extraction and feeding even under adverse conditions, minimizing malfunctions for peace of mind.
• Mid-Length Gas System: Optimized for reduced recoil and muzzle rise, delivering a softer shooting experience that improves follow-up shots and control.
• 7075-T6 Aluminum Receiver: T-marked and anodized black for corrosion resistance, with M4 feed ramps to ensure flawless ammunition flow and compatibility with standard components.

Specifications

• Caliber: 5.56mm NATO
• Barrel Material: Cold hammer forged, chrome-lined steel
• Receiver Material: 7075-T6 aluminum
• Finish: Type III hardcoat anodized black
• Weight: Approximately 4 lbs (64 oz)
• Length: 14.5 inches (barrel)
• Gas System: Mid-length
• Muzzle Device: Factory-installed A2 flash hider (not pinned)
• Forward Assist & Dust Cover: Compatible and included

Why Choose the SR-15 KS-2 Upper Receiver Kit?

In a market flooded with entry-level options, the KAC SR-15 KS-2 stands out by addressing common pain points like unreliable cycling, excessive recoil, and premature wear. Its advanced components— from the chrome-lined barrel that withstands thousands of rounds to the E3 bolt that enhances reliability—solve these issues, offering a professional-grade upper that performs flawlessly in training, competition, or defense. Built to mil-spec tolerances yet refined with KAC’s proprietary tech, it integrates seamlessly with your existing lower, transforming any AR-15 into a high-performance rifle without the hassle of mismatched parts.

Whether you’re a tactical enthusiast customizing for precision or a professional seeking battle-proven gear, this kit delivers tangible benefits: tighter groups, faster target reacquisition, and confidence in every round. Don’t settle for ordinary—invest in the superior engineering that defines Knight’s Armament excellence.

Frequently Asked Questions

Q: What components are included in the Knights Armament SR-15 KS-2 Upper Receiver Kit?
A: The kit includes the upper receiver, 14.5-inch cold hammer forged barrel, URX 4 M-LOK handguard, mid-length gas system, E3.2 bolt carrier group, charging handle, forward assist, dust cover, and factory muzzle device for a complete, ready-to-assemble upper.

Q: Is this upper receiver kit compatible with standard AR-15 lowers?
A: Yes, it adheres to mil-spec dimensions, ensuring drop-in compatibility with any standard AR-15 lower receiver, allowing for easy integration into your existing build.

Q: Does the kit require special tools for installation?
A: No special tools are needed beyond basic AR-15 assembly tools like a torque wrench for the barrel nut; it’s designed for straightforward installation by experienced builders.

Ready to upgrade your AR-15 with unmatched reliability? Secure your Knights Armament SR-15 KS-2 14.5″ Upper Receiver Kit today and experience the difference premium craftsmanship makes in the field.