Aero Precision M4E1 Threaded Assembled Upper Receiver and ATLAS S-ONE M-LOK HG Combo – Anodized

The M4E1 Threaded Upper/ATLAS S-ONE Combo Set Includes:

• M4E1 Threaded Assembled Upper Receiver
• ATLAS S-ONE Handguard of choice
• Handguard Mounting Hardware

ATLAS S-ONE Handguard:

The ATLAS S-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the S-ONE line of handguards are designed with size and weight in mind, providing the perfect handguard for 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.

Available in M-LOK profiles with 7″, 9″ 12″ and 15″

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 AR15 upper receivers and barrels

M4E1 Threaded Assembled Upper Receiver:

The M4E1 Threaded Assembled Upper Receiver features a new angular machined design that helps it’stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed. Get the billet look without paying the billet price.

M4E1 Threaded Upper 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

Specifications:

• Made In AMERICA: Yes
• Platform: AR-15
• Weight: M-LOK: 7″ – 16.48 oz / 9″ – 17.09 oz / 12″ – 18.62 oz / 15″ – 19.57 oz
• Other: Note: Weights above include Gen 2 Upper, Handguard and Mounting Hardware.