Aero Precision M4E1 300 BLK 10" Quantum M-LOK Complete Upper

Aero Precision M4E1 300 BLK 10″ Quantum M-LOK Complete Upper

Aero Precision M4E1 300 BLK 10″ Quantum M-LOK Complete Upper is the most efficient way to assemble your own semi-custom firearm; fully assembled and warrantied by Aero Precision.  This complete upper features an M4E1 Upper Receiver, 9″ Quantum M-LOK Handguard, a 10″ 300 BLK barrel with a standard birdcage muzzle device, and finished in hard coat black anodize.

M4E1 Upper Receiver Features:

• New enhanced forging that gives the upper receiver a “billet look”
• M4 Feed ramps
• .250 takedown pin holes
• Includes port door and forward assist installed

Quantum Handguard Features:

• 1pc Free Float Design
• Removable 4-slot picatinny rail section for front sight
• Built-in anti-rotational tabs
• 7 mounting surfaces for MLOK accessories.
• 1.78″ ID fits most muzzle devices and 1.5″ suppressors
• Compatible with low profile gas blocks
• Compatible with mil-spec AR15 upper receivers and barrels

10″ 300 BLK Barrel Features:

• Material:  Chrome Moly Vanadium
• Finish: QPQ Corrosion-resistant finish both inside and out.
• Gas System: Pistol Gas w/ .750 Journal
• Other: M4 Extension | HP, and MPI Tested
• Standard A2 flash hider

Includes:

• M4E1 Assembled Upper Receiver
• M-LOK Quantum Handguard
• 10″ 300 BLK CMV Barrel
• Low Profile Gas Block and Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle.
• The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.

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