This completely assembled upper does not include BCG or Charging Handle.
This Complete Upper includes Aero Precision's Quantum Handguard!
- Key features include the addition of built in anti-rotation tabs
- Removable 4-Slot Picatinny rail section for Front Sight
- 7 Mounting Surfaces for MLOK Accessories.
Includes:
- M4E1 Enhanced Assembled Upper Receiver (NO BCG or CHARGING HANDLE)
- Quantum Handguard
- 16" 5.56 CMV Barrel
- Low Profile Gas Block
- Mid-Length Gas Tube
M4E1 Upper Features:
- Forged from 7075 T6 aluminum
- Precision machined to M4E1 specs
- M4 Feed Ramps
- Matte Black Mil-Spec 8625, Type 3, Class 2, Hard-Coat Anodized
- Laser Engraved T-marks
- Comes Assembled with Firing Port Door and Forward Assist Installed (NO BCG or CHARGING HANDLE)
- Accepts Standard AR15/M16 Components
- Handguard Mounting Platform Is Forged Into The Upper Receiver
- Works with Aero Precision Handguards
- Fits Most BAR-System Handguards
Quantum Handguard Features:
- 1pc Free-Float Design
- Removable 4-Slot Picatinny Rail Section for Front Sight
- Built-In Anti-Rotation Tabs
- 7 mounting Surfaces for MLOK Accessories
- 1.78-Inch Inside Diameter
- Fits Most Muzzle Devices and 1.5-Inch Diameter Suppressors
- Compatible With Low Profile Gas Blocks
16-inch 5.56 Mid-Length Barrel Features:
- Chambered in 5.56 NATO
- 16-Inch 4150 CrMoV, QPQ Finished Barrel
- 1/7 Twist
- Mid-Length Gas System
- .750 Gas Block
- M4 Feed Ramp Extension
- HP and MPI tested
- Standard A2 Flash Hider
M4E1 Upper Features:
- Forged 7075 T6 Aluminum
- Precision machined to M4E1 Specs
- M4 Feed Ramps
- Matte Black Mil-Spec 8625, Type 3, Class 2, Hard-Coat Anodized
- Laser Engraved T-Marks
- Comes Assembled with Firing Port Door and Forward Assist Installed (NO BCG or CHARGING HANDLE)
- Accepts standard AR15/M16 Components
- Handguard Mounting Platform Is Forged Into The Receiver
- Works with Aero Precision Handguards, but Also Fits Most BAR-System Handguards
Quantum Handguard Features:
- 1pc free float design
- Removable 4-slot picatinny rail section for front sight
- Built-In Anti-Rotation Tabs
- 7 Mounting Surfaces for MLOK Accessories
- 1.78" Inside Diameter - Fits Most Muzzle Devices and 1.5-Inch Diameter Suppressors
- Compatible With Low Profile Gas Blocks
16-inch 5.56 NATO Mid-Length Barrel Features:
- Chambered in 5.56 NATO
- 16-inch Barrel - 4150 CrMoV, QPQ Finished
- Mid-Length Gas System
- 1/7 Twist
- .750 Gas Block Journal
- Mid-length gas system
- M4 Feed Ramps Extension
- HP and MPI tested
- Standard A2 Flash Hider
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