Vktr Indrustries VK-1, 5.56mm, 11.5" Barrel w/ A2 Flash Hider, Black, Complete Upper Receiver

The VKTR VK-1 Complete Upper packages a short, hard-hitting 5.56 upper receiver into a mission-ready assembly built for compact rifles and pistol builds. At 11.5" with a heavy-profile, nitride-finished barrel and 1/2×28 threading, this upper is optimized for suppressed or compensator-equipped hosts while preserving balance and durability. The thermal-fit forged upper, continuous 12 o’clock Picatinny, and low-profile M-LOK handguard give you a solid mounting platform for optics and mission accessories. VKTR specified practical, service-grade components where they matter: an H900-style heavy barrel with 1:7 twist, machined cooling flutes, and nitride finish for longevity; a Radian Weapons Raptor™ charging handle for ambidextrous, positive manipulation; and a forged thermal-fit upper for tight tolerances and repeatable zero. Threaded 1/2×28 muzzle compatibility plus the included carbine buffer and spring make this upper a straightforward drop-in for many AR lowers—ideal for compact patrol rigs, truck guns, or short-range precision builds.

Specifications:

• Caliber: 5.56 NATO 
• Barrel Length: 11.5" heavy profile, 1:7" twist
• Muzzle Thread: 1/2×28
• Barrel Finish / Features: Nitride finish; machined cooling flutes
• Upper Receiver: Thermal-fit forged upper with continuous 12 o’clock Picatinny rail
• Handguard: Low-profile M-LOK handguard 
• Charging Handle: Radian Weapons Raptor™ ambidextrous charging handle 
• Included: Carbine buffer and spring