Radical Firearms AR-15 20" 6.5 Grendel Type II 416R Stainless - 15" M-LOK MHR Rail

Manufactured by Radical Firearms
SKU: FR20-6.5-SS-MED-15MHR3
MPN: FR20-6.5-SS-MED-15MHR
Manufactured by Radical Firearms
(0) No Reviews yet

Out of Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time is approximately 14 to 16 days.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers. Due to Covid-19 many are no longer open
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



If you want to push the boundaries of what the AR-15 platform can do, then you should check out this Radical Firearms AR chambered in 6.5 Grendel Type 2. The 6.5 Grendel cartridge combines the hard-hitting nature of .308 with the lower recoil of 5.56 and provides exceptional accuracy potential. This Radical Firearms AR-15 aims to take advantage of the accuracy potential of this cartridge by using a barrel machined out of 416R stainless steel; one of the most popular barrel steels for precision shooting. It is rifled with a 1:9 twist rate to help stabilize the heavier 6.5 rounds and it features a Radical Firearms stainless steel Pepper Pot muzzle break to help reduce muzzle rise. This 20” barrel uses a rifle length gas system with a low-profile gas block that fits nicely beneath the 15” free float handguard. The Radical Firearms MHR handguard has multiple picatinny rails as well as M-LOK slots, so you can easily customize how and where you want to attach lights, grips, or other accessories. Whether you just want an affordable rifle for precision shooting or an effective semi-automatic hunting platform, the Radical Firearms 6.5 Grendel AR-15 is a great choice.

  • 20” 416R stainless steel barrel with 1:9 twist
  • 6.5 Grendel Type II chamber
  • Melonite coated BCG
  • Magnetic particle inspected bolt
  • Stainless steel Pepper Pot muzzle brake
  • Low profile gas block with rifle length system
  • Mil-Spec forged upper and lower receiver
  • Ambidextrous safety selector
  • Extended mag and bolt release
  • MFT ergonomic pistol grip
  • MFT Minimalist adjustable carbine stock
  • Includes one magazine
  • Made in the U.S.A.

This AR-15 pattern rifle uses standard Mil-Spec upper and lower receivers for maximum compatibility with aftermarket components. The only things that are different between 6.5 Grendel and .223 is the bolt, barrel, and magazine. The lower receiver is assembled with multiple upgrades over other AR rifles. It features an ambidextrous safety selector, extended magazine release and bolt release, and even a Mission First Tactical pistol grip. If that isn’t enough, it also features the popular Mission First Tactical Minimalist stock that is extremely light weight and durable. This AR-15 comes with a host of improvements that will make your time at the range much more enjoyable. 

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.
See More


Barrel Coating
Barrel ContourMedium
Barrel Length20
Barrel LiningStainless Steel
Barrel Material416R Stainless Steel
BrandRadical Firearms
Caliber Gauge6.5 Grendel Type 2
Gas System LengthRifle
Gas System TypeDirect Impingement
Handguard15 in Radical M-LOK MHR Rail
Thread Pattern5/8 X 24
Twist Rate1:9

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

No reviews available

Be the first to Write a Review