Knights Armament 7.62MM SR-25K3 16" Upper Receiver Kit - 121479

Elevate your AR-10 build with the Knights Armament 7.62mm SR-25K3 16″ Upper Receiver Kit, engineered for unmatched precision and reliability in demanding tactical scenarios. As the commercial counterpart to the elite M110K3, this upper delivers rapid, accurate fire at mid-range distances, combining lightweight maneuverability with robust construction to meet the needs of serious shooters and professionals alike.

Key Features

• Precision 5R Rifled Barrel: 16-inch 416R stainless steel barrel with 1:10 twist ensures exceptional accuracy and consistent performance with 7.62 NATO/.308 Winchester ammunition, reducing fouling for longer shooting sessions.
• URX6 M-LOK Handguard: Impact-resistant design with seven-sided M-LOK slots and a full-length MIL-STD-1913 top rail allows seamless accessory integration, enhancing modularity without adding unnecessary weight.
• Enhanced Bolt System: High-pressure dual ejector bolt improves reliability in suppressed or unsuppressed configurations, even in adverse conditions, extending component life and minimizing malfunctions.
• T-Marked 7075 Aluminum Receiver: Forged from aerospace-grade material with black anodized finish for superior strength and corrosion resistance, featuring M4 feed ramps for smooth feeding of heavier .308 rounds.

Specifications

• Caliber: 7.62x51mm NATO / .308 Winchester
• Barrel Length: 16 inches
• Twist Rate: 1:10 RH
• Receiver Material: 7075-T6 Aluminum
• Finish: Type III Hardcoat Anodized Black
• Weight: Approximately 90 oz
• Dimensions: Length 29 inches, Width 2.5 inches, Height 3.25 inches
• Compatibility: Forward assist and port door dust cover ready; AR-10/SR-25 pattern

Why Choose the SR-25K3 Upper Receiver Kit?

This kit addresses common challenges in AR-10 platforms, such as inconsistent feeding and reduced longevity under high-round counts. Its advanced gas system and premium materials provide smoother operation and greater durability, allowing you to focus on the shot rather than equipment failures. Ideal for custom builds seeking military-grade performance, it offers versatility for hunting, competitive shooting, or tactical applications, ensuring your setup stands out in precision and dependability.

Ready to upgrade your rifle with proven excellence? Secure the Knights Armament SR-25K3 16″ Upper Receiver Kit today and experience the difference in craftsmanship and accuracy that top-tier builds demand.

Frequently Asked Questions

Q: Is this upper compatible with standard AR-10 lowers?
A: Yes, the SR-25K3 upper is designed for AR-10/SR-25 pattern lowers, ensuring a reliable fit with proper alignment for optimal function.

Q: What components are included in the kit?
A: The kit includes the upper receiver, 16-inch barrel, bolt carrier group, handguard, charging handle, and necessary hardware for a complete assembly.

Q: Does it support suppressed shooting?
A: Absolutely, the dual ejector bolt and tuned gas system enhance performance in both suppressed and unsuppressed setups, handling backpressure effectively.