Aero Precision M4E1-T Complete Upper, 16" .223 Wylde Fluted SS Barrel, 15" M-LOK ATLAS S-ONE HG - Anodized - APAR700305M50

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Includes:

• M4E1 Threaded Assembled Upper Receiver
• ATLAS S-ONE Handguard of choice
• 16″ .223 Wylde Mid-Length Fluted Stainless Steel Barrel
• Low Profile Gas Block and Mid-Length Gas Tube
• Product comes assembled
• This complete upper does not include BCG or Charging Handle.

M4E1 Threaded Upper Receiver Features:

• New enhanced forging that gives the upper receiver a “billet look”
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes port door and forward assist installed

ATLAS S-ONE Handguard Features:

• Front and rear picatinny rail
• Eliminated center of top rail for weight reduction
• Indexing grooves in 12:00 position for positive grip control
• Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
• Compatible with low profile gas blocks
• 1.3” Inside diameter
• 1.5” Outside diameter
• Compatible with mil-spec AR-15 upper receivers and barrels

16″ .223 Stainless Steel Mid-Length Barrel Features:

• .223 Wylde 16″ Fluted Mid-Length Barrel, 1/8 Twist
• 416R Stainless Steel
• Bead Blasted Finish
• .750 gas block journal
• Mid-length gas system
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider

This barrel features some of the most aggressive and weight reducing flutes on the market. Coming in at a total weight of 27 oz. We’ve managed to cut almost a pound out of the barrel all while not sacrificing one ounce of accuracy!