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RF 16" 5.56 M4 Complete Rifle with 12" FGS Round Rail
RF 16" 5.56 M4 Complete Rifle with 12" FGS Round Rail

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MSRP: $555.95

Stock Status:Ready to build; check lead times
Availability: Current Production Time Up To 4 Weeks
Product Code: FR16-5.56M4-12FGS


Charging Handle*:



The Radical Firearms complete AR-rifle is a fully Mil-Spec AR-15 rifle built using our law enforcement grade upper receivers and mil spec lowers. The 4150 Chromoly Vanadium Steel barrels are Melonite treated for a harder-than chrome finish without chrome's accuracy robbing side effects! This same finish is applied to the bolt carrier groups, helping to reduce receiver wear and increase reliability. The bolt heads are MIL-STD and MPI for quality assurance. The full-length, free float handguard keeps your hands cool and provides plenty of room for accessories. As an added touch, we are adding a Radical Firearms 12" FGS (Forward Guard Shield) Round Rail that we built from scratch in-house! The FGS rail even has the capability to add attachments other than on the top picatinny rail, as it does allow Magpul Moe attachments and RF rail sections.

Pick up a set of your favorite sights, and you're ready for the range!

This rifle is our budget friendly model with all the extras you will want for your first, second or last build!

Rifle comes complete with:

  • 16" 5.56 M4 4140V Chromoly Melonited Barrel
  • 1 in 7" twist rate
  • 5.56 Chamber with M4 Feed Ramps
  • 1/2x28 Thread Pitch
  • M16 MPI BCG With Melonite Coating
  • RF Low Profile Micro Gas Block
  • Stainless Carbine Length Gas System
  • Direct Gas Impingement
  • Mil-Spec A2 Flash Hider
  • 12"Radical Firearms Free Float FGS Handguard
  • Attachment Slots accept either Magul MOE attachments, or our RF picatinny rail sections (FGS-A)
  • MIL-STD Forged Upper Receiver with RF Forward Assist, Shell Deflector
  • MIL-STD Forged Radical Firearms Lower
  • MIL-STD Lower Parts Kit, with RF Ambi Fire Control group, RF Billet Mag Release, RF Billet Bolt Catch
  • MFT EPG16V2 Grip
  • MFT Minimalist Collapsible Stock
  • Magazine

  • Weight: 6lbs 3oz
    Length: 32.5”

      *Image may differ from product description
      **Does Not include a pinned gas block or a 38 point checklist

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

      1 of 1 people found the following review helpful:
    Don't wait! May 31, 2017
    Reviewer: R W from Annville, PA United States  
    Bought this from another online site for the awesome price (less than $500), outstanding features, and excellent reviews.  Do all the research you need and you'll come back to this rifle because you'd pay far more another AR with the same features.  Plunked a 3x9 scope and some flip-up BUIS with 45 degree offsets on it.  I suspect that after I take this "scary black gun" to the range, it'll earn that 5th star.
    American made and arrived at my FFL in less than a week too.  What are you waiting for?  RF has what you're looking for in this one.

    I finally took it to the range and the first day was a little troubling.  Had FFTs and a double feed jam that ended the session.  After clearing the jam, I surmised my weapon didn't like being treated with kid gloves.  The next day at the range was flawless!  When you charge the weapon, charge it like you mean it!!!!  5 stars now!!!

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      5 of 5 people found the following review helpful:
    Great Ar-15 November 7, 2016
    Reviewer: Austin Jones from Fernandina Beach, FL United States  
    I did not buy this rifle directly from radicalfirearms.com, but from one of Radical's retailers. This gun is well worth 5 stars, as well as every penny. I did extended research on the best Ar-15 for the price, and this one definitely did not disappoint. I received the gun last week, and was pleased with it immediately out of it's case. For the price it is the best Ar-15 on the market I believe. Sure you can go out and spend a couple $1000 on a  Rock river or something like that, but this will definitely do the job. Only made a few upgrades out of the case. I replaced the stock and pistol grip with Magpul, added a Pmag, bought some affordable backup sights and added a red dot. With all the upgrades still got the gun shipped and transferred for 600 dollars. I highly recommend this rifle, and will definitely be buying another Radical Firearm in the future!

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      4 of 4 people found the following review helpful:
    Well worth the money... September 7, 2016
    Reviewer: Brandon Saylor from San Antonio, TX United States  
    Excellent rifle with quality parts and customer service is awesome. They'll do everything in their power to help you resolve any issues you may be having. Buy with confidence at worst case scenario you'll deal with their customer service and as I mentioned above they are awesome people and will everything they can to help you.

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      5 of 6 people found the following review helpful:
    Gives You That Special Feeling of Quality ... June 3, 2016
    Reviewer: Bob from Wildwood, MO United States  
    As soon as you handle it.  Can't say much more than that.

    I had researched quite awhile and seen very positive reviews on various gun forums, but until you get it in your hands and take it to the range yourself, one never knows for sure.

    I'm sold on Radical Firearms ARs. Buy with confidence.

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      5 of 6 people found the following review helpful:
    Just flawless April 18, 2016
    Reviewer: Mike W from Virginia, United States  
    I bought one of these through AIM Surplus. While I was skeptical at first, the few reviews I could find online were favorable.

    Out of the box, with no additional oil or lube, I took it to the range and put 150 rounds through it with zero malfunctions of any kind. The rifle just runs. This is a solid, dependable rifle that you can trust your life to, and it has excellent ergonomics and excellent fit and finish.

    Bottom line: This rifle is an excellent deal and is a superb platform to build your first AR15. All you need is a set of iron sights and you've got a gun you can count on to save your life if need be.

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