The Knights Armament SR-25 K5 7.62 NATO/.308 14.5" BBL Assembled Upper Receiver delivers precision rifle performance in a compact, dual-role package. Built as the commercial counterpart to the M110K5, this complete upper combines a cold hammer-forged, chrome-lined 14.5-inch barrel with a 7.62mm open brake, offering dependable accuracy and reduced recoil while remaining suppressor-ready for KAC QDC devices. The URX6 handguard provides a rigid mounting platform with seven sides of M-LOK slots and a continuous Mil-Std 1913 top rail for optics and accessories.

This assembled upper is ready to pin onto a compatible SR-25 pattern lower, giving shooters a refined .308/7.62 NATO solution for range work, training, or precision-focused builds out to extended distances. A high-pressure dual-ejector bolt enhances reliability in varied conditions, while fully ambidextrous controls and a drop-in two-stage trigger support confident, repeatable shot placement. The SR-25 K5 upper reflects Knights Armament’s long-standing reputation for meticulous engineering and purpose-driven innovation.

Key Features:

• Manufacturer: Knights Armament
• Model: SR-25 K5 Assembled Upper Receiver
• Caliber: 7.62 NATO / .308 Winchester
• Barrel Length: 14.5 Inches
• Handguard: URX6 With M-LOK And Mil-Std 1913 Rail
• Muzzle Device: 7.62mm Open Brake, QDC Suppressor Compatible
• Bolt: High-Pressure Dual-Ejector Design
• Trigger: Drop-In Two-Stage
• Controls: Fully Ambidextrous