Aero Precision 16" Barrel M4E1 Upper 5.56 with Atlas S-One Handguard AR15

This complete upper includes our 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 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
• 15" S-ONE M-LOK Handguard of choice
• 16" 5.56 CMV Barrel
• Low Profile Gas Block and Carbine-Length Gas Tube
• Product comes assembled

This complete upper does not include BCG or Charging Handle.

M4E1 Threaded Upper Receiver Features:

• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• New enhanced forging that gives the upper receiver a "billet look"
• New picatinny profile that blends seamlessly with our Enhanced Series Handguards
• Port door installed

ATLAS S-ONE Handguard Features:

• Lightweight picatinny rail for sights and optics
• 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 AR15 upper receivers and barrels

Aero Precision takes some of the most state-of-the-art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.