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JBU F8R Free Floating M4 CQB Commando Handguard Front Conversion Kit


  • - Full metal construction
  • - CNC-machined design
  • - FIRSH handguard, w/ rail covers
  • - Steel flash hider and front iron sight
  • - Reinforced outer barrel
  • - 6.03mm internal diameter inner barrel
  • - Engraved Olympic Arms logo
  • - Compatible with most metal gearbox M4 AEGs (ICS, TM, CA, G&G)


In the Box

FIRSH handguard

outer barrel

inner barrel

front iron sight

flash hider

barrel nut

barrel wrench

taper pins

Allen key


Length 7” in. (handguard)
Construction Aluminum
Compatibility Most metal gearbox M4 AEG rifles
Weight 11.7oz (handguard)

California Proposition 65 Warning: Cancer and Reproductive Harm -

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