Elevate your SR-25 build with the Knight’s Armament SR-25 Notched Upper Receiver Kit, engineered for seamless compatibility with URX-6 handguards and uncompromising performance in demanding tactical scenarios. Crafted by Knight’s Armament Company (KAC), a leader in military-grade firearms components, this notched upper kit delivers the precision and reliability that serious shooters demand, ensuring your .308/7.62 rifle operates flawlessly under stress.
Key Features
- Notched Design for URX Compatibility: Precision-machined notch allows direct installation of URX-6, URX-4, URX-3/3.1, and URX II handguards, eliminating the need for modifications and providing a rock-solid rail system for optics, lights, and grips.
- Premium Construction: Forged from high-strength 7075-T6 aluminum and finished in durable hardcoat anodized black, offering superior resistance to wear and corrosion for long-term durability in harsh environments.
- Enhanced Feeding and Ejection: Features M4-style feed ramps and T-markings for improved reliability with a wide range of ammunition, reducing malfunctions and enhancing overall shooting experience.
- Dust Cover Inclusion: Comes complete with port door and dust cover assembly to protect the chamber from debris while maintaining easy access for maintenance.
Specifications
- Material: 7075-T6 Aluminum Forging
- Finish: Hardcoat Anodized, Black
- Forward Assist: Not Compatible
- Port Door / Dust Cover: Compatible and Included
- T-Marks: Yes, T-Marked for Proper Handguard Alignment
- Feed Ramps: M4 Barrel Extension Compatible
- Weight: 9.6 oz
- Dimensions: Length: 8 in, Width: 1.35 in, Height: 2.5 in
Why Choose This Product
Building a custom SR-25 demands components that match the platform’s legendary reputation for accuracy and endurance. This notched upper kit addresses common pain points like handguard fitment issues and unreliable feeding by providing a purpose-built solution that’s ready for immediate integration. Whether you’re upgrading an existing rifle or starting a new precision build, it ensures tighter tolerances, better heat dissipation, and enhanced modularityâtranslating to more accurate shots, faster target acquisition, and greater confidence in the field. Unlike generic AR-10 uppers, KAC’s engineering minimizes play and maximizes stability, solving the frustrations of loose fittings and inconsistent performance that plague lesser alternatives.
Frequently Asked Questions
Q: What is included in the SR-25 Notched Upper Kit?
A: The kit includes the notched stripped upper receiver, dust cover assembly, and port door components, providing a complete foundation for your build without unnecessary extras.
Q: Is this upper receiver compatible with standard AR-10 lowers?
A: It is designed specifically for SR-25 pattern lowers and KAC-cut AR-10 lowers to ensure proper fit and function; standard AR-10 lowers may require modifications.
Q: Which handguards does this notched upper support?
A: It is fully compatible with Knight’s Armament URX-6, URX-4, URX-3/3.1, and URX II modular rail systems for versatile accessory mounting.
Transform your SR-25 into a pinnacle of tactical excellenceâsecure this Knight’s Armament notched upper kit and experience the difference in precision and reliability that only KAC can deliver.








