The VKTR VK-1 Complete AR-15 Upper with a 13.7-inch barrel and FDE Cerakote (brand part no. V-4027-3410-005-RP) is a piston-operated upper built on VKTR’s low-profile VK-1 design. VKTR Industries uses a patented piston system and a thermal fit forged upper receiver, with a continuous 12 o’clock Picatinny rail and a low-profile M-LOK handguard. A Radian Raptor charging handle comes installed, and the barrel has machined cooling flutes to shed heat. It is a complete upper only, so you pair it with your own AR-15 lower to finish the rifle.

Key Specifications

• The barrel length is 13.7 inches, a compact length between a carbine and a short barrel.
• The finish is FDE Cerakote, a flat dark earth coating that resists wear.
• The operating system is a patented low-profile gas piston, which keeps combustion gases out of the receiver.
• The upper uses a thermal fit forged receiver, intended to avoid heat-related point-of-impact shift.
• A continuous 12 o’clock Picatinny rail maximizes room for optics and accessories.
• The handguard is a low-profile M-LOK design, which allows flexible accessory mounting.
• A Radian Raptor charging handle comes installed on the upper, which improves manipulation.

Frequently Asked Questions

Does this include a lower receiver? No. It is a complete upper assembly only. You need a compatible AR-15 lower to finish a rifle.

What color is this VK-1 upper? This version is finished in FDE Cerakote. VKTR also offers the VK-1 uppers in Armor Black, Sniper Grey and Green.

How does the VK-1 operate? It uses VKTR’s patented low-profile gas piston system rather than direct impingement, which keeps combustion gases out of the receiver.

Buy the VKTR VK-1 Complete AR-15 Upper, 13.7-Inch Barrel, FDE Cerakote

The 13.7-inch VK-1 is a compact piston upper, and FDE gives it a distinct look on a tan build. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and see more AR upper parts while you are here.