Aero Precision M4E1 Enhanced 10.5" 5.56 Complete Upper Receiver with Pinned FSB and 7" Quad Rail Handguard - Anodized Black - APAR640211Q3

Aero Precision APAR640211Q3: This Complete Upper includes Aero Precision's Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. This complete upper does not include BCG or Charging Handle. 

Includes:

• M4E1 Enhanced Assembled Upper Receiver
• 7" Quad Rail Enhanced Handguard
• 10.5" 5.56 Carbine Length CMV Barrel
• Pinned FSB and Carbine 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

Gen 2 Enhanced Handguard Features:

• 1pc free float design
• Built in anti-rotation tabs
• Scalloped rails
• Continuous top rail
• 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
• Compatible with low profile gas blocks
• Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
• Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal
• Gen 2 Feature - New profile for the continuous picatinny top rail

10.5" Barrel w/ Pinned FSB Features:

• 5.56 Nato, 10.5" carbine gas, 1/7 twist, 4150 CrMoV, with F marked FSB taper pin
• .750 gas block journal
• Carbine gas system
• M4 Feed Ramp Extension
• HP and MPI tested
• Weight: 34 oz
• Front sight block comes stripped, no sight post or sling swivel
• Standard A2 flash hider