This Complete Upper includes the Quantum MLOK 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.
Includes:
M4E1 Enhanced Assembled Upper Receiver
Enhanced 7" Quantum MLOK Handguard
10" .300 Blackout CMV Barrel
Low Profile Gas Block and Pistol Length Gas Tube
Product comes assembled
This complete upper does not include BCG or Charging Handle unless Added.
M4E1 Upper Features:
Forged from 7075 T6 aluminum
Precision machined to M4E1 specs
M4 feedramps
FDE Cerakoted Mil 8625 Type 3 Class 2
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 M-LOK accessories
1.78" inside diameter fits most muzzle devices and 1.5" suppressors
Compatible with low profile gas blocks
Barrel Features:
Chamber: .300 Blackout
Length: 10"
Material: 4150 Chome Moly Vanadium
Finish: QPQ Corrosion Resistant Finish
Gas System Length: Pistol
Gas Block Journal: .750"
Twist Rate: 1:7 Inches
Muzzle: 5/8x24 Threaded
Weight: 21oz
Other; M4 Feed Ramp Extension, HP and MPI Tested, Standard A2 Flash Hider