Knights Armament 7.62MM SR-25K5 14.5" Upper Receiver Kit - 121487

Upgrade your SR-25 build with the precision-engineered Knights Armament 7.62mm SR-25 K5 14.5″ Upper Receiver Kit, designed for unmatched reliability and accuracy in demanding tactical scenarios. This complete upper assembly delivers exceptional performance from close-quarters engagements to extended ranges up to 800 meters, making it the choice for serious shooters seeking a battle-proven AR-10 platform component.

Key Features

• Cold Hammer Forged Barrel: 14.5-inch hybrid light profile barrel crafted from 32CrMoV12-10 steel with chrome lining and 1:10 twist rate, ensuring superior durability, heat resistance, and consistent rifling for enhanced velocity and accuracy.
• URX6 Free-Float Handguard: Impact-resistant polymer and aluminum construction with seven-sided M-LOK slots and a full-length top Picatinny rail, providing versatile mounting options for optics, lights, and grips without adding unnecessary weight.
• High-Pressure Gas System: Optimized mid-length gas system paired with a dual-ejector bolt carrier group for reliable cycling under high-pressure 7.62 NATO loads, reducing malfunctions and extending component life.
• T-Marked 7075-T6 Aluminum Receiver: Forged and anodized black for corrosion resistance, with M4-style feed ramps to improve feeding reliability and compatibility with standard AR-10 magazines.
• Ambidextrous Enhancements: Fully compatible with forward assist and port door dust cover, offering seamless integration and user-friendly operation for left- or right-handed shooters.

Technical Specifications

• Caliber: 7.62x51mm NATO / .308 Winchester
• Barrel Length: 14.5 inches
• Overall Length: Approximately 28.5 inches
• Weight: 8.0 lbs
• Receiver Material: 7075-T6 Aluminum, Hardcoat Anodized Black
• Feed Ramps: M4 Extension
• Handguard: URX6 M-LOK, 12.5 inches
• Muzzle Device: A2 Flash Hider (5/8×24 threads)

Why Choose the SR-25 K5 Upper Receiver Kit?

This kit addresses common challenges in AR-10 builds, such as inconsistent accuracy and overheating during prolonged use. The cold hammer-forged barrel maintains tight groups even after thousands of rounds, while the lightweight hybrid profile balances maneuverability with the stopping power of 7.62mm. Ideal for custom SR-25 lowers, it ensures drop-in compatibility without modifications, saving time and frustration for builders. Whether for precision shooting, home defense, or professional applications, this upper elevates your rifle’s performance with KAC’s legendary quality and innovation.

Ready to enhance your tactical arsenal? Secure the Knights Armament SR-25 K5 14.5″ Upper Receiver Kit today and experience the difference in precision and reliability that top-tier engineering provides.

Frequently Asked Questions

1. Is this upper receiver kit compatible with standard AR-10 lowers?
Yes, the SR-25 K5 upper is designed for compatibility with Knights Armament SR-25 pattern lowers, ensuring a secure fit and optimal function within the proprietary platform.

2. What does the kit include?
The kit includes the complete upper receiver assembly: barrel, bolt carrier group, charging handle, handguard, and muzzle device, ready for immediate installation on a compatible lower.

3. Can this upper handle suppressed fire?
Absolutely, the mid-length gas system and robust construction make it well-suited for use with suppressors, maintaining reliable operation while reducing gas blowback.