Aero Precision M4E1-E AR-15 16" 5.56 NATO Upper Receiver w/ Enhanced Quad-Rail 15" M-LOK Handguard - $374.99

Description

M4E1-E Threaded Upper Receiver
Gen 2 Enhanced Handguard with Quad Rail
16" 5.56 HBAR Barrel
Low-profile gas block and mid-length gas tube
A2 Birdcage Flash Hider
Product comes assembled
Does NOT include BCG or charging handle
M4E1-E Threaded Upper Receiver

Forged from 7075-T6 aluminum
Corrosion-resistant anodized finish
Precision-machined to M4E1 specs
Laser engraved T-marks
Comes assembled with the port door and forward assist installed
Compatible with standard AR-15 components
Handguard mounting platform is forged into the receiver
Fits most BAR-system handguards
Barrel nut and wrench
GEN 2 Enhanced M-LOK Handguard

6061-T6 aluminum
Corrosion-resistant anodized finish
QD sling sockets at 3, 6, and 9 o'clock positions
Continuous Picatinny top rail
Additional Picatinny rails at 3, 6, and 9 o'clock
Built-in anti-rotation tabs
1.78" inside diameter fits most muzzle devices and 1.5" suppressors
Compatible with low-profile gas blocks
16" 5.56 HBAR Barrel

Constructed with 4150 Chrome Moley Vanadium steel
Corrosion-resistant QPQ finish
Compatible with mid-length gas systems
Features a .750" gas block journal
M4 feed ramp extension
HP and MPI tested