Daniel Defense M4A1 FSP FDE 5.56 NATO 14.5″ Bbl Upper Receiver Group w/Pinned SureFire SF3P Flash Hider 23-004-09376



Daniel Defense’s M4A1 FSP Upper Receiver Group was inspiered by the USSOCOM SOPMOD Block II, and comes packed with Daniel Defense exclusive features. The upper receiver is MIL-SPEC with indexing marks and M4 feed ramps, and is constructed from CNC Machined 7075-T6 aluminum. The Barrel is cold hammer forged and is chrome lined, while the Gas System is carbine length and is direct impingement. The barrel also features SureFire’s SF3P Flash Hider: an advanced muzzle device that can reduce muzzle flash by an astounding 99% and also serves as a rock solid mounting adapter for SureFire’s SOCOM Fast Attach Suppressors. Other features include a Bolt Carrier Group with chrome lining and an M16 profile, and a Daniel Defense M4A1 FSP Rail Interface handguard with four picatinny rails in the 12 o’clock, 3 o’clock, 6 o’clock, and 9 o’clock positions.

Features of the Daniel Defense M4A1 FSP Upper Receiver Group:

  • Quad-rail handguard
  • SureFire SF3P Flash Hider
  • Daniel Defense M4A1 FSP Rail Interface handguard


  • Caliber:5.56 NATO
  • Weight:4.58 lbs
  • Rifle Barrel Length:14.5
  • Rifle Barrel Twist:1:7″
  • Iron SightsYes
  • Caliber or Gauge:5.56 x 45mm NATO
  • Item ConditionNew
  • Product TypeReceiver
  • UPC818773021869
  • MPN23-004-09376


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