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 and a 7 mounting surface for accessories. This assembly does not include BCG or Charging Handle.
Includes:
- M4E1 Enhanced Assembled Upper Receiver
- 7″ Quantum Handguard
- 8″ .300 Blackout CMV Barrel
- Low Profile Gas Block and Pistol Length Gas Tube
- Product comes assembled
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.
M4E1 Upper Features:
- Forged from 7075 T6 aluminum
- Precision machined to M4E1 specs
- M4 feedramps
- Matte black hard coat anodized Mil 8625 Type 3 Class 2
- Laser engraved T-marks
- Comes assembled, with port door and forward assist installed
- 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
- Barrel nut and wrench are included
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 KeyMod accessories
- 1.78″ inside diameter fits most muzzle devices and 1.5″ suppressors
- Compatible with low profile gas blocks
8″ .300 Blackout Barrel Features:
- Length: 8″
- Twist: 1 in 7
- Muzzle: 5/8×24 Threaded
- Material: 4150 Crome Moly Vanadium
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block: .750
- Gas Port: .109
- Gas System Length: Pistol
- Weight: 18oz
- M4 Barrel Extension
- HP and MPI Tested
Specifications:
- Caliber/Gauge .300 Blackout
- Barrel Length 8″
- Barrel Twist 1:7
- Barrel Finish QPQ Corrosion Resistant
- Firearm Fit AR-15
- Threaded Barrel Yes