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Daniel Defense  |  SKU: RSR-DD23-004-09376

Daniel Defense - M4A1 FSP Upper Receiver Group - 14.5" 5.56 NATO

$1,74599
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Description

The Daniel Defense M4A1 FSP Upper Receiver Group is built for enthusiasts looking for a firearm inspired by the USSOCOM SOPMOD Block II. This upper features the M4A1 FSP RIS II Picatinny quad rail in Flat Dark Earth, a 14.5" M4 profile barrel, and a Mil-Spec F-Marked front sight base. It comes equipped with a Surefire SF3P flash hider/suppressor adapter, an A1.5 Fixed Rear Sight, an M16 profile full auto bolt carrier group, and a Rail Mounted QD Swivel Attachment Point with QD swivel.

Materials & Construction:

  • Upper Receiver: Mil-Spec with indexing marks and M4 feed ramps, CNC machined from 7075-T6 Aluminum, Type III hard coat anodized.
  • Barrel: Chrome Moly Vanadium Steel, Cold Hammer Forged, 14.5" M4 profile, 1:7 twist, chrome lined, Mil-Spec heavy phosphate coated, and HP/MPI tested.
  • Gas System: Mil-Spec F-Marked Front Sight Base, carbine length, direct impingement.
  • Muzzle Device: Surefire SF3P flash hider/suppressor adapter, precision machined from US mill-certified heat-treated stainless steel bar stock, black Ionbond DLC coating, pinned and welded to the barrel.
  • Bolt Carrier Group: M16 profile, Mil-Spec MP tested, chrome lined, properly staked gas key.
  • Sights: A1.5 Fixed Rear Sight, CNC machined from 6061-T6 Aluminum, Type III hard coat anodized.
  • Handguard: Daniel Defense M4A1 FSP Rail Interface System (RIS) II, CNC machined of 6061-T6 Aluminum, Type III hard coat anodized in FDE.
  • Made in the USA!

Specifications:

  • Mounting System: Picatinny
  • Caliber: 5.56mm NATO
  • Gas System: Carbine
  • Barrel Length: 14.5"
  • Barrel Profile: M4
  • Product Weight: 4.58 lbs
  • Manufacturer: Daniel Defense

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Daniel Defense

Daniel Defense - M4A1 FSP Upper Receiver Group - 14.5" 5.56 NATO

$1,74599

The Daniel Defense M4A1 FSP Upper Receiver Group is built for enthusiasts looking for a firearm inspired by the USSOCOM SOPMOD Block II. This upper features the M4A1 FSP RIS II Picatinny quad rail in Flat Dark Earth, a 14.5" M4 profile barrel, and a Mil-Spec F-Marked front sight base. It comes equipped with a Surefire SF3P flash hider/suppressor adapter, an A1.5 Fixed Rear Sight, an M16 profile full auto bolt carrier group, and a Rail Mounted QD Swivel Attachment Point with QD swivel.

Materials & Construction:

Specifications:

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