Knights Armament Sr-25 K7 6.5Mm Creedmoor 14.5'' Bbl Assembled Upper Rcvr Blk

The Knights Armament SR-25 K7 6.5mm Creedmoor assembled upper receiver represents the commercial evolution of KAC's proven M110K7 precision platform. This upper receiver is purpose-built for shooters who demand legitimate 1,000-meter capability paired with close-range reliability—whether you're running a dedicated long-range rig, building a versatile precision carbine, or planning a complete rifle build. The 14.5-inch 416R stainless steel barrel with 5R rifling and 1:7.5-inch twist rate is optimized for 6.5 Creedmoor ballistics and arrives dimpled and ready for assembly.

Ambidextrous controls throughout mean left-handed shooters get full ergonomic parity, and right-handers gain redundant manipulation options that improve speed and efficiency under stress. The high-pressure dual-ejector bolt is engineered to function reliably in suppressed fire, adverse conditions, and sustained use—exactly the kind of durability you expect from Knights Armament. The integrated URX6 handguard resists impact-induced shift and offers seven sides of M-LOK slots plus a continuous mil-spec top rail, giving you genuine modularity for optics, lights, and support attachments without the noise of loose rails.

The 7.62mm open brake mitigates recoil impulse and accepts KAC's QDC Signature Reduction Devices for seamless suppressor integration. A drop-in 2-stage trigger completes the package, delivering the crisp break and reset that precision work demands. This is a complete assembled upper receiver ready to mate with a standard SR-25/AR-10 pattern lower—no gunsmithing required.

Key Features

• 14.5" 416R stainless steel barrel with 5R rifling and 1:7.5" twist for 6.5 Creedmoor
• High-pressure dual-ejector bolt engineered for suppressed and unsuppressed reliability
• Fully ambidextrous controls for left-handed and right-handed shooters
• Drop-in 2-stage trigger for precision marksmanship
• URX6 handguard with seven M-LOK mounting slots and continuous top rail
• 7.62mm open brake compatible with KAC QDC Signature Reduction Devices
• Assembled upper receiver ready for immediate build completion

Specifications

Frequently Asked Questions

What lower receiver does this upper mate with?

This is an SR-25/AR-10 pattern assembled upper receiver. It will mate with any compatible SR-25 or AR-10 format lower receiver.

Is this upper assembled and ready to go?

Yes. This is a fully assembled upper receiver—barrel, bolt, handguard, trigger, and brake are already installed. You'll need a compatible lower receiver to complete the rifle build.

Can I use a suppressor with this upper?

Absolutely. The integrated 7.62mm open brake is designed to accept KAC 7.62mm QDC Signature Reduction Devices, and the high-pressure dual-ejector bolt is engineered to function reliably in suppressed fire.

Is this upper suitable for long-range shooting?

Yes. The SR-25 K7 platform is purpose-built for precision work from close range to 1,000+ meters. The 6.5 Creedmoor cartridge, 14.5-inch barrel, 5R rifling, drop-in 2-stage trigger, and top-mounted optics rail support serious precision applications.