Knights Armament SR-15 KS-2 5.56 NATO 14.5" Assembled Upper Receiver – Premium Tactical Upper
The Knights Armament SR-15 KS-2 5.56 NATO 14.5" Assembled Upper Receiver (121436) is a factory-assembled, high-performance upper receiver built on the legendary SR-15 platform. Featuring a 14.5-inch barrel and a modern M-LOK handguard, this complete upper delivers an excellent balance of maneuverability, velocity, and reliability. Manufactured to the strict standards that have made Knights Armament a trusted name among elite military and law enforcement units, the SR-15 KS-2 upper provides a premium, ready-to-install solution for building a short-barreled rifle or upgrading an existing SR-15 lower receiver.
Knights Armament continues to set the standard for quality and performance in the AR-15 market. The KS-2 model offers a slightly longer barrel than the KS-1, providing improved ballistic performance while still maintaining a compact and highly maneuverable profile.
Key Features of the Knights Armament SR-15 KS-2 5.56 NATO Assembled Upper
14.5-Inch Barrel
Optimized 14.5-inch barrel provides an excellent balance between compactness and ballistic performance, delivering better velocity than shorter barrels while remaining highly maneuverable.
Factory Assembled
Comes fully assembled with upper receiver, barrel, bolt carrier group, and handguard, ensuring proper headspacing and reliable function straight out of the box.
M-LOK Handguard
Modern M-LOK compatible handguard offers a lightweight and versatile mounting platform for accessories while maintaining a slim, comfortable profile.
Why Choose the Knights Armament SR-15 KS-2 5.56 NATO 14.5" Assembled Upper Receiver?
When searching for a premium 5.56 NATO assembled upper receiver with a 14.5-inch barrel, the Knights Armament SR-15 KS-2 5.56 NATO 14.5" Assembled Upper Receiver (121436) stands out as an outstanding choice for builders and tactical shooters. The SR-15 platform has earned a reputation for exceptional reliability, accuracy, and durability under the most demanding conditions. This assembled upper allows users to quickly and confidently build a high-performance short-barreled rifle by pairing it with a compatible SR-15 lower receiver. The 14.5-inch barrel is a key advantage of the KS-2 model. Compared to the shorter 13.7-inch KS-1, the 14.5-inch barrel provides noticeably better muzzle velocity, which improves terminal ballistics and effective range. This makes the KS-2 an ideal choice for shooters who want a compact rifle without sacrificing too much performance. The barrel length remains short enough for excellent maneuverability in close-quarters battle (CQB), vehicle operations, and dynamic shooting environments. One of the biggest benefits of purchasing a factory-assembled upper from Knights Armament is the assurance of quality and proper assembly. Each upper is carefully built and inspected at the factory, ensuring correct headspacing, proper torque specifications, and reliable function. This saves builders significant time and eliminates the need for specialized tools or professional gunsmithing services. The M-LOK handguard provides a modern, lightweight mounting solution that allows shooters to customize their rifle with lights, lasers, grips, bipods, and other accessories without adding unnecessary weight. The slim profile improves handling comfort while offering ample real estate for attachments. Combined with Knights Armament’s precision-machined upper receiver and high-quality components, this assembled upper delivers the fit, finish, and performance the brand is famous for. The SR-15 KS-2 upper receiver is compatible with standard AR-15 lower receivers and magazines. Its black finish provides a professional, tactical appearance while offering good corrosion resistance. Whether you are building a short-barreled rifle, replacing an existing upper, or looking for a high-quality 5.56 NATO upper for a custom project, the Knights Armament SR-15 KS-2 14.5" Assembled Upper Receiver offers exceptional value and performance. Investing in a Knights Armament upper receiver means owning a component built to the same standards as those used by elite military and law enforcement units. The SR-15 KS-2 delivers the reliability, accuracy, and quality that serious shooters expect from one of the most respected names in the firearms industry.
- Knights Armament SR-15 KS-2 Assembled Upper Receiver
- Chambered in 5.56 NATO
- 14.5-Inch Barrel
- M-LOK Compatible Handguard
- Factory Assembled and Inspected
- Black Finish
- Premium Fit and Finish
- Ready to Install on SR-15 Lower Receiver
- Excellent Balance of Compactness and Performance
- Model: 121436
Technical Specifications – Knights Armament SR-15 KS-2 5.56 NATO Upper
| Specification | Details |
|---|
| Brand | Knights Armament |
| Model | SR-15 KS-2 |
| Part Number | 121436 |
| Caliber | 5.56 NATO |
| Barrel Length | 14.5 Inches |
| Handguard | M-LOK |
| Configuration | Assembled Upper Receiver |
| Finish | Black |
| Key Benefits | Compact Size, Improved Velocity, Premium Quality |
| Best For | Short-Barreled Rifle Builds, Tactical Use, CQB |
Shop the Knights Armament SR-15 KS-2 5.56 NATO 14.5" Assembled Upper Receiver today.
The Knights Armament SR-15 KS-2 5.56 NATO 14.5" Assembled Upper Receiver (121436) is a premium, factory-assembled upper featuring a 14.5-inch barrel and M-LOK handguard. Chambered in 5.56 NATO, this complete upper offers exceptional reliability, accuracy, and maneuverability. Ready to install on a compatible SR-15 lower receiver, it is finished in black and built to the highest standards by Knights Armament. Ideal for short-barreled rifle builds, tactical professionals, and serious shooters seeking a high-quality 5.56 NATO upper receiver. Part Number: 121436.
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