7.5" M4 1:7 5.56MM Radical Rail Upper Assembly
7.5" M4 1:7 5.56MM Radical Rail Upper Assembly

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MSRP: $289.95

Stock Status:(Out of Stock)
Availability: Current Production Time Up To 4 Weeks
Product Code: FU7.5-5.56M4-7FHR

***Please select your options on the right hand side for BCG, Charging Handle, and other choices***

The Radical Firearms 7.5" M4 Upper Receiver is a flat top, law-enforcement grade, drop in receiver, ready to be mounted to any Mil-Spec AR-15 lower receiver! This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes complete and assembled with Upper Receiver, Forward Assist, Ejection Port Door, Barrel Nut. 7.5" M4 Profile Barrel and A2 Flash Hider. Bolt Carrier Group and Charging Handle are additional and are offered at discounted prices in the drop down menus.

  • 7.5” 4140 Chromoly Barrel With Melonite Coating
  • 5.56 M4 Profile
  • M4 Feed Ramps
  • 1:7 Twist Rate
  • A2 Flash Hider
  • 1/2x28 TPI
  • Low Profile Gas Block
  • Carbine Length Gas System
  • Radical Firearms Forged MIL-STD Upper Receiver
  • MIL-STD Upper Parts Kit
  • RF Dimpled Forward Assist
  • Radical Firearms 7" FHR Hybrid Rail System
  • Integrated Keymod attachment points on the sides and bottom with Picatinny Rails at the fore end for Mounting Lights, Lasers, Bipods & Sights
  • Made in Houston, Texas U.S.A.!

Average Rating: 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
100% reliable, works like a charm, excellent value April 2, 2018
Reviewer: Shalimar FL AR builder from Shalimar, FL United States  
WORKS LIKE A CHARM !!  I bought this upper w/out charging handle or bolt carrier group through the DVOR site and put it on an existing AR15 Pistol.  As soon as I shot it, it became my "absolute favorite" upper to use with the pistol lower.  It was 100% functional from the first round fired and in that use makes the AR pistol an unbelievably well balanced firearm.  Accurate, too!

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  3 of 4 people found the following review helpful:
SUPER BUY! September 12, 2015
Reviewer: James from AR, United States  
I got this upper quite a while back and just put the 1200th round through it today without a single cleaning since I got it. I have not had one single problem, malfunction, failure... nothing. If you want quality at a good price, then look no further than this site. You will not be let down, I promise you that!

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