Aero Precision M4E1 Enhanced 18" .223 Wylde Complete Upper Receiver with 15" Enhanced M-LOK Handguard - Anodized Black - APAR640251M42

Aero Precision APAR640251M42: This Complete Upper includes Aero Precision 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
• 15" Enhanced M-LOK Handguard
• 18" .223 Wylde Rifle Length Stainless Steel Barrel
• Low Profile Gas Block and Rifle Length Gas Tube
• Product comes assembled

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

18" .223 Stainless Steel Rifle Length Barrel Features:

• .223 Wylde 18" Rifle Length Barrel, 1/8 Twist
• 416R Stainless Steel
• Bead Blasted Finish
• .750 gas block journal
• Rifle length gas system
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider