Radical Firearms FCR M-LOK Handguard Gen 3 - 15"

Manufactured by Radical Firearms
MPN: R-15FCR-3
Manufactured by Radical Firearms
3 Reviews
$95.72 $119.65

Out of Stock

NOTE: Limit 5 per household. Quantities exceeding 5 will not allow checkout.



The Radical Firearms FCR rail system is a lightweight and comfortably slim handguard ideal for shooters wanting to keep unnecessary ounces off their rifle build. Each rail is precision machined from high-strength 6061-T6 aluminum and features a tough hardcoat anodized finish. With a comfortable 1.375" internal diameter, seamless top-rail, and heavy duty 4140 steel barrel nut, this M-LOK compatible handguard is an excellent option for your next build.

  • 6061-T6 aluminum construction
  • 15" handguard will cover rifle length gas systems
  • Full length M1913 Picatinny Top Rail
  • Rigid design with 4140 steel barrel nut
  • M-LOK design compatible with your favorite accessories
  • 3rd generation mounting system
  • Made in Stafford, Texas!

The ergonomic freefloat FCR handguard features a monolithic M1913 picatinny top rail for your favorite sights, optics, and accessories. Anti-rotation tabs interface with MIL-SPEC upper receivers to ensure optimal alignment of the top rail. The 3rd generation mounting system offers impressive rigidity to reduce deflection when bracing against barriers or shooting from a bipod, and clamps to a strong 4140 chromoly vanadium steel barrel nut.

Based out of Stafford, Texas, Radical Firearms got their start producing quality affordable firearms and accessories. With a wide selection of AR-15s in popular chamberings, they are certain to produce the rifle or AR pistol you’re looking for at a price you can afford. Best of all, Radical Firearms offers an exclusive lifetime warranty on all of their products as long as you own them!
See More



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

3 reviews

  • 5 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews

Do not buy

by -

I would be livid if I paid $120 for this junk. Finish is pure garbage and the threaded holes are rough. It doesn't line up with a mil spec upper without modification to the alignment tabs. I even managed to bend it pretty bad while assembling my upper. If this is any indication of radical
<br>firearms quality I'm scared for owners of full rifles. Even on a 22lr upper buy quality know parts. We all know the old saying you get what you pay for.

Learn from my mistake

by -

If you're reading this review that means this handguard is probably on sale right now. Your thinking this is the deal of a lifetime. Don't be fooled. This handguard is garbage. The threaded holes are rough, to the point where I could only get the screws halfway through. Also this finish is complete trash. Don't waste your money.

Rough finish

by -

As usual, Primary Arms was fast at shipping out orders. The handguard fit tightly with the upper receiver. The finish is not that good. It easily scratched and is rough to the touch. I lightly sanded mine and painted it with aluma-Hyde II. It came out looking good. That alleviated any finish issues I had. Minus one star because of the finish. I have a couple Radical Firearms uppers and they work great. Same finish issue though.