Radical Firearms AR-15 Rifle 16" 5.56 - 15" M-LOK RPR Rail

Manufactured by Radical Firearms
SKU: FR16-5.56SOC-15RPR
MPN: FR16-5.56SOC-15RPR
Manufactured by Radical Firearms
31 Reviews

Out of Stock

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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



Radical Firearms 16" 5.56 NATO Rifle is an affordable AR-15 rifle built for reliability. These rifles are crafted using quality materials and backed by the Radical Firearms Lifetime Warranty, making them an excellent choice for any shooter on a budget. With upgraded furniture, forged aluminum upper and lower receivers, and a mid-length gas system, this well-built rifle from Radical Firearms is one you can count on. These rifles offer out-of-the-box performance, you'll just need to add your favorite iron sights or optics, and you'll be ready to head for the range.

  • 16" 4140 Chrome Moly Vanadium Steel SOCOM Barrel with Melonite Finish
  • Chambered in 5.56 NATO with a 1:7 twist rate
  • M16 cut bolt carrier group with Melonite finish
  • BCG high pressure tested and magnetic particle inspected
  • Standard charging handle
  • MIL-SPEC single-stage trigger
  • 1/2x28 A2 flash hider
  • 15" Radical Firearms M-LOK RPR rail
  • Gen 3 rail mounting system
  • B5 Carbine Stock and pistol grip
  • Made in the U.S.A. in Stafford, Texas!

The Radical Firearms 16" SOCOM 5.56 AR Rifle features an RPR free-float handguard. The RPR system keeps your hands cool, improves accuracy, and has plenty of M-LOK attachment points for accessories.
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Barrel CoatingMelonite
Barrel ContourSOCOM
Barrel Length16
Barrel LiningMelonite
Barrel Material4140 Chrome Moly Steel
BrandRadical Firearms
Caliber Gauge5.56 NATO
Gas System LengthMid-Length
Gas System TypeDirect Impingement
Handguard15 in Radical M-LOK RPR Rail
Magazine Capacity30
Muzzle DeviceA2 Flash Hider
Thread Pattern1/2 X 28
Twist Rate1:7
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

31 reviews

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Hands down a solid system...

by -

If you're wondering whether or not if it's a "good brand" or something like that, know this... I've ran everything through this thing and have not had an issue ever. Brass, steel case Russian .223 and 5.56... 55 grain to 77 grain.
<br>Once sighted in, it's a tack driver. Only thing I changed out was the charging handle, but that's kind of a thing you're pretty much going to want to do no matter what manufacturer you're getting your carbine from.
<br>Hands down a reliable system at a price that is crazy good.

Great gun


This rifle is a great choice when looking for a entry level rifle. The build is all quality, the price point is great, the performance is above and beyond.
<br>I was honestly not expecting the performance to be as high as my upper end rifles but it can actually compete. Reliability is showing to be durable.
<br>Components and build include so much more when compared to other rifles in this price point. Best rifle in the category.

5 Star Black Rifle


This is built to the highest quality. Don't let the low price fool you, it is a great mid level AR.
<br>5 Stars all the way.

Best deal you can find


Great gun. Built well, Very accurate and for the price you cannot beat it!



This Rifle is probably the nicest I’ve ever purchased and it shipped to me in one day!! Thanks Primary you guys are the best :)



I barely turned 18 and was very excited to buy my first AR 15. Ive been shooting guns my whole life and had never shot RF 15 or any Rafical fireearm product. However, with everything going on and guns being very hard to find I had to settle with this product. I did some research and the name of the company does not have much credibility however, my impatience was stronger and I bought it. It is not the best gun I have ever shot however, it is also the cheapest when it comes to price. I have shot it more than a thousand times and never had an issue. It is great for its price specially now in times where everything is over priced. If you are looking for a first AR or a gun which will introduce you to the world of guns DO not hestitate on having the RF 15 as one of you options. GREAT GUN FOR THE PRICE!!!!

Incredible Value


Hard to beat this rifle for the money. It’s my first AR platform and I have no regrets. Lifetime warranty from Radical, and manufactured just down the road from PA.

First AR


This was my first AR-15. Shipping was fast considering the amount of firearms being purchased right now so thanks Primary Arms for their great work. Took it to the range today just to test it out. Ran about 150 rounds of Hornady frontier ammunition through it. It ate it up no FTF or FTE ran great. Can’t wait to put more ammunition down range with this. For the price it’s a great gun and a good place to start if you are looking to purchase your first AR-15.

First AR - Happy Experience

by -

This is my first AR 15 type rifle and I am immensely satisfied. I've run about 200 rounds through it so far, with no failures. And I paid nearly $150 less than a local brick and mortar shop! I would buy another Radical Firearms rifle or pistol with confidence and have recommended the rifle and Primary Arms to my friends.

First ever gun!


So, for my first ever firearm I purchased this. For the price and the quality there was no other choice. It's an incredibly well built, solid choice for a first time buyer of firearms. I was so happy when I saw this came in. I ended up even getting 3 more 30 round mags to go with this. I have yet to have a chance to shoot it, but as soon as I am able to I will probably edit this review if possible. I love how this feels in the hand, it's comfortable and not too heavy. It comes with a 30 round mag so that's a plus, but there are no sights on it at all, I bought some extra iron-sights and a red dot optic as well and I cannot wait to test them out.