VKTR VK-1 Complete Upper | 5.56 NATO | 16 in | V40273410001RP

The VKTR VK-1 Complete Upper (V40273410001RP) is a factory-built AR-15 upper assembly centered on a 16-inch nitrided steel barrel and a piston-actuated operating system. It pairs a precision-machined bolt carrier with a thermal-fit receiver and an adjustable gas system for consistent performance across varied conditions. The upper ships with a Radian Raptor charging handle and an A2 flash hider, making it suitable for precision-oriented range work and competition shooting.

Product Specifications

• The caliber is .223 REM/5.56 NATO.
• The barrel length is 16 inches.
• The barrel material is listed as STEEL.
• The barrel finish is NITRIDE.
• The rifling rate of twist is 1:7″.
• The operating system is piston actuated.
• The upper receiver is specified as billet aluminum.
• The assembly includes an adjustable gas system.
• The charging handle is a Radian Raptor.
• The muzzle device is an A2 flash hider.
• The product is marked as AR-15 compatible.
• The listed weight is 7.2 (unit not specified in source data).
• The product is marked as MADE IN THE USA.
• The UPC is 810155160203.

This upper is built for shooters who prioritize mechanical consistency and modularity. The piston system and adjustable gas settings reduce carrier bounce and help manage recoil impulse for follow-up accuracy, while the nitrided steel barrel promotes long-term durability. Use this assembly to upgrade an existing lower for precision work at the range or for competition applications where consistency and serviceability matter.