Radical Firearms AR-15 Complete Upper 16" 5.56 Mid-Length - 12" M-LOK FCR

Manufactured by Radical Firearms
SKU: CFU16-5.56SOC-12FCR3
MPN: CFU16-5.56SOC-12FCR
Manufactured by Radical Firearms
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If you are looking to assemble an AR-15 but don’t want to take the time to choose every single part or simply don’t have the tools to complete an upper receiver, check out this Radical Firearms complete upper. It comes with all the features you want and can be shipped straight to your door, so you can attach it to your favorite lower. It has a 16” 4150 chrome moly barrel with a slick Melonite coating and is chambered for 5.56 NATO. This AR upper receiver has a fast 1:7 twist rate to stabilize lighter and much cheaper surplus 55gr ammunition. Outfitted to the end of the barrel is a standard A2 flash hider that uses a 1/2x28 thread pitch for maximum compatibility with other aftermarket muzzle devices, so you can upgrade in the future. Surrounding the barrel is a Radical Firearms FCR M-LOK handguard. This free float handguard attaches flush to the M4 flat top upper receiver giving you a full length picatinny rail for optics and iron sights. The FCR handguard saves weight by deleting side and bottom rails and replacing them with M-LOK slots, so you can put rail segments or accessories exactly where you want them. If you are getting started on a new build, this complete AR-15 upper receiver will get you finished in no time.

  • 16” 4140 Chromoly Barrel With Melonite Coating
  • 5.56 M4 Profile
  • Melonite coated bolt carrier group
  • Mil-Spec charging handle
  • M4 Feed Ramps
  • 1:7 Twist Rate
  • A2 Flash Hider
  • 1/2x28 TPI
  • Low Profile Gas Block
  • Mid-Length Gas System
  • Radical Firearms Forged Mil-Spec Upper Receiver
  • Mil-Spec Upper Parts Kit
  • RF Dimpled Forward Assist
  • Radical Firearms 12” FCR with M-LOK Accessories Slots
  • Made in Houston, Texas U.S.A.

This Radical Firearms complete upper receiver group comes with all that you need including a Melonite coated BCG and a Mil-Spec charging handle. It also uses a mid-length gas system to strike the perfect balance between reliability and low felt recoil. Whether you are finishing a new build or simply want an extra upper receiver to swap between lowers, this 16” AR-15 upper is a great option.

Radical Firearms offers law enforcement grade hardware. Crafted with quality materials and covered by their lifetime warranty, Radical Firearms is an outstanding choice for any budget.
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Barrel Length16
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandRadical Firearms
Caliber Gauge5.56 NATO
Gas System LengthMid-Length
Gas System TypeDirect Impingement
Handguard12 in Radical M-LOK FCR Rail
Muzzle DeviceA2 Flash Hider
Twist Rate1:7

WARNING: This product can expose you to chemicals including Nickel Acetate, which is known to the State of California to cause cancer. For more information, see www.p65warnings.ca.gov

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