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Knights Armament SR-25 Notched Upper Kit URX-6 Compatible

Knights Armament · Upper Parts

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Knights Armament SR-25 Notched Upper Kit URX-6 Compatible

Best price

$581.40at AR15Discounts

checked Nov 14, 2026

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Specifications

Manufacturer
Knights Armament

Compatibility

Platform
AR-10

Where to buy

StorePriceAvailabilityBuyAdd to build
AR15Discounts Best price 5% off $581.40checked Nov 14, 2026 Check store Buy at AR15Discounts
Dirty Bird $581.40checked Nov 14, 2026 Check store Buy at Dirty Bird

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Price history

Dashed line = out of stock. Tracking since Oct 28, 2026.

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AR15Discounts$581.40$581.40$581.40
Dirty Bird$581.40$581.40$581.40

Since Oct 28, 2026.

About this part

The Knights Armament SR-25 Notched Upper Kit URX-6 Compatible is an AR-10 upper part from Knights Armament. It's sold by 2 stores, all at $581.40.

From the manufacturer

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 modularity-translating 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 excellence-secure this Knight's Armament notched upper kit and experience the difference in precision and reliability that only KAC can deliver.

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