Knights Armament SR-25 K3 7.62 NATO 16" Assembled Upper Receiver – Premium .308 Upper
The Knights Armament SR-25 K3 7.62 NATO 16" Assembled Upper Receiver (121479) is a factory-assembled, high-performance upper receiver built on the legendary SR-25 platform. Chambered in 7.62 NATO / .308 Winchester and featuring a 16-inch barrel with a modern M-LOK handguard, this complete upper delivers exceptional power, accuracy, and reliability in a well-balanced package. Designed for tactical professionals, precision shooters, and serious builders, the SR-25 K3 upper provides a premium, ready-to-install solution for creating a high-performance 7.62 NATO rifle.
Knights Armament has long been trusted by elite military and law enforcement units for its uncompromising quality and performance. The SR-25 K3 assembled upper brings that same level of engineering excellence to builders who want a professional-grade .308 upper receiver without the time and effort of assembling one from individual parts.
Key Features of the Knights Armament SR-25 K3 7.62 NATO Assembled Upper
16-Inch Barrel
Optimized 16-inch barrel provides an excellent balance of velocity, maneuverability, and overall rifle length for tactical and general-purpose use.
Factory Assembled
Comes fully assembled with upper receiver, barrel, bolt carrier group, and M-LOK handguard, ensuring proper headspacing and reliable function.
M-LOK Handguard
Modern M-LOK compatible handguard offers a lightweight and versatile mounting platform for accessories while maintaining a slim profile.
Why Choose the Knights Armament SR-25 K3 7.62 NATO 16" Assembled Upper Receiver?
When searching for a premium 7.62 NATO assembled upper receiver, the Knights Armament SR-25 K3 7.62 NATO 16" Assembled Upper Receiver (121479) stands out as a top-tier option for builders and serious shooters. The SR-25 platform has earned a reputation as one of the most reliable and accurate semi-automatic .308 rifles in the world. This factory-assembled upper allows users to quickly and confidently build a high-performance 7.62 NATO rifle by pairing it with a compatible SR-25 lower receiver. The 16-inch barrel is a popular choice for the SR-25 platform because it offers an ideal balance between ballistic performance and handling. It provides sufficient velocity for effective terminal performance at medium to long ranges while keeping the overall length of the rifle more manageable than a 20-inch barrel. This makes the SR-25 K3 upper well-suited for tactical applications, precision rifle competitions, and general-purpose use where a versatile .308 rifle is desired. One of the biggest advantages 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 right out of the box. 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-25 K3 upper receiver is compatible with standard SR-25 pattern lower receivers and magazines. Its black finish provides a professional, tactical appearance while offering good corrosion resistance. Whether you are building a precision .308 rifle, replacing an existing upper, or looking for a high-quality 7.62 NATO upper for a custom project, the Knights Armament SR-25 K3 16" 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-25 K3 delivers the reliability, accuracy, and quality that serious shooters expect from one of the most respected names in the firearms industry.
- Knights Armament SR-25 K3 Assembled Upper Receiver
- Chambered in 7.62 NATO / .308 Winchester
- 16-Inch Barrel
- M-LOK Compatible Handguard
- Factory Assembled and Inspected
- Black Finish
- Premium Fit and Finish
- Ready to Install on SR-25 Lower Receiver
- Excellent Balance of Power and Maneuverability
- Model: 121479
Technical Specifications – Knights Armament SR-25 K3 7.62 NATO Upper
| Specification | Details |
|---|
| Brand | Knights Armament |
| Model | SR-25 K3 |
| Part Number | 121479 |
| Caliber | 7.62 NATO / .308 Winchester |
| Barrel Length | 16 Inches |
| Handguard | M-LOK |
| Configuration | Assembled Upper Receiver |
| Finish | Black |
| Key Benefits | Factory Assembled, 7.62 NATO Power, Premium Quality |
| Best For | Precision Rifle Building, Tactical Use, Long-Range Shooting |
Shop the Knights Armament SR-25 K3 7.62 NATO 16" Assembled Upper Receiver today.
The Knights Armament SR-25 K3 7.62 NATO 16" Assembled Upper Receiver (121479) is a premium, factory-assembled upper featuring a 16-inch barrel and M-LOK handguard. Chambered in 7.62 NATO, this complete upper offers exceptional reliability, accuracy, and performance. Ready to install on a compatible SR-25 lower receiver, it is finished in black and built to the highest standards by Knights Armament. Ideal for precision rifle builders, tactical professionals, and serious shooters seeking a high-quality 7.62 NATO upper receiver. Part Number: 121479.
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