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VK-1 Complete Upper – Cerakote complete piston upper with 12.5″ handguard.


  • Bolt Carrier Group – Precision machined one-piece patented bolt carrier with correct timing, long advanced cam path, finished in thin, dense chrome. Patented, long advanced cam path for consistent lock up, shot after shot. Match performance right out of the gate.
  • Enhanced Upper Rail – Upper receiver rail creates a truly continuous 12 o’clock Picatinny mount, optimizing available accessory real estate and reducing the overall weight of the forged upper receiver.
  • Thermal Fit Receiver – VK-1 upper receivers utilize a thermal fit to provide the highest level of accuracy potential while eliminating any heat-related POI shift.
  • VK-1 Piston System – Features our patented low-profile piston system, specifically tuned to maximize reliability in all conditions with the smallest footprint possible.


  • Radian Weapons Raptor™ charging handle
  • Continuous 12 o’clock Picatinny rail
  • Thermal fit forged upper receiver
  • Thread pitch: 1/2×28
  • Hammer forged barrel with machined cooling flutes
  • Low profile MLOK handguard
  • Includes required carbine buffer and spring
  • Colors:  Armor Black, FDE, Sniper Grey cerakote for superior protection and style.
  • Weight: 4.1 lbs.
  • Length: 21.4 inches

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The VK-1 Complete Upper from VKTR is a state-of-the-art firearm component, expertly designed and built with precision engineering for close-quarters missions and compact maneuverability. This high-quality and innovative piece of technology is designed to optimize firearm performance and boost reliability. With its short-stroke pistol system and patented processes, this complete upper offers advanced materials and innovative design elements, ensuring maximum durability and accuracy in a compact package.

This upper is tailored to the needs of shooters who require uncompromising quality and precision. Crafted from the best materials available, it showcases superior engineering and the utmost attention to detail. The outcome is a remarkable system that dramatically enhances shooting performance and improves user experience.

As an industry leader, VKTR is committed to pushing the boundaries of firearms engineering and setting a new standard in the field. With the VK-1 Complete Upper, they offer a cutting-edge solution to firearm enthusiasts seeking unmatched maneuverability, reliability, and precision. Through rigorous testing and continuous improvement, VKTR ensures that the VK-1 Complete Uppers remain an undisputed choice for those who demand the best.

Add your choice of compatible muzzle devices and upgrade your firearm system with the VK-1 Complete Upper to experience the unmatched quality and performance that only VKTR can provide.

Additional information

Weight 4.1 lbs

Armor Black, Sniper Grey, Magpul FDE


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The VK-1 is the lightest, most low profile, feature-rich piston driven AR-15 on the market.


The VK-1 is the lightest, most low profile, feature-rich piston driven AR-15 on the market.