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Radical Firearms 16" 300 BLK 1:8 Pistol Length HBAR Rifle Kit - 15" M-LOK FCR Gen3 Rail and Zero Impulse Brake

Manufactured by Radical Firearms
Manufactured by Radical Firearms
1 Review

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



The Radical Firearms 16" 300 BLK HBAR Rifle Kit is law enforcement grade hardware. Crafted with quality materials and covered by Radical’s lifetime warranty, this MIL-SPEC rifle kit is an outstanding choice for any budget.

Includes the Radical Firearms FCR system, a slim handguard that provides the weight savings you want without sacrificing any of the mounting possibilities you require. This freefloat design offers a monolithic Picatinny rail and plenty of M-LOK attachment points for all your gear.

  • 16" 41V50 chrome moly vanadium steel HBAR barrel
  • Chambered in 300 BLK with a 1:8 twist rate
  • M16 cut bolt carrier group with Melonite finish
  • BCG magnetic particle inspected
  • Standard charging handle
  • 5/8x24 Zero Impulse Muzzle Brake
  • 15" Radical Firearms M-LOK FCR rail
  • Gen 3 rail mounting system
  • MIL-SPEC lower parts kit
  • Billet mag button
  • Billet bolt catch
  • Billet safety selector
  • 6-position MIL-SPEC receiver extension tube
  • Carbine buffer
  • Carbine buffer spring
  • A2 pistol grip
  • Collapsible M4 stock
  • Made in the U.S.A. in Stafford, Texas!
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Barrel CoatingMelonite
Barrel ContourHBAR
Barrel Length16
Barrel LiningMelonite
Barrel Material41V50 Chrome Moly Vanadium Steel
Bolt Carrier GroupM16 Bolt Carrier
Bolt Material9310 Steel
BrandRadical Firearms
Caliber Gauge300 Blackout
Carrier FinishMelonite
Carrier Material8620 Carpenter Steel
Carrier StyleM16 Bolt Carrier
Feed RampsM4
Gas System LengthPistol
HP TestedUntested
Handguard15 in Radical M-LOK FCR Rail
MPI Tested
Muzzle DeviceRadical Firearms Zero Impulse Muzzle Brake
Receiver Material7075-T6 Aluminum
Twist Rate1:8

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

1 review

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Surprising build kit


First time building an AR after buying one and modifying it. Interesting experience but definitely one I'd do again. The build kit was amazing and the parts kit being in color coded bags actually helped a lot. Had a few hiccups along the way with an oops kit and a spring, detent, and roll pin but the fit and finish was excellent, the only thing I didn't care for was the grip that came with the kit.
<br>All in all, I'd definitely buy this build kit again, but my next AR with be done by me with a stripped receiver set. :)