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K16-204UR: 16in. .204 Ruger® K16 Style Upper Receiver

Quick Overview

16" Bull barreled match grade .204 Ruger® target/hunting upper. Great for an Olympic Arms or any major brand lower.

Availability: Available (built to order)



This is the top-half to the best value in accuracy-based AR15 carbines out there. The K16 is well known for its awesome performance right out of the box. Half-inch groups at 100 yards are the norm, not the exception with this upper. Chambered in popular .204 Ruger® cartridge, this upper is a flat-shooting, fast moving, accurate varmint and predator hunter's dream upper. The .204 Ruger Upper used standard 5.56x45 magazines.

The K16-204UR upper comes standard with:

  • 1" SS Bull barrel
  • 1x12" twist
  • Picatinny flat-top upper
  • Picatinny Gas block
  • Button Rifled Match-grade barrel
  • Blak-Tac Bolt carrier
  • Magnu-fluxed, roll peened -better than 'mil-spec' bolt
  • Free-floating aluminum handguard assembly for superior accuracy
  • Lifetime Warranty!
  • 100% Made in the USA!

K16 uppers are also available in the following calibers.

  • 5.56x45
  • 7.62x39
  • 300 AAC Blackout
  • 6.8 Remington

When choosing optional handguards, the mid-length F85RP handguard option eliminates the picatinny gas block as the handguard itself covers the gas-block area. In this case the picatinny gas block will be replaced with a low-profile gas block instead.

Additional Information

SKU K16-204UR

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Olympic Arms, Inc. is not affiliated with the IOC/USOC or any other Olympic sports organization.