Aero Precision M4E1 Threaded Assembled Upper Receiver and ATLAS S-ONE M-LOK HG Combo - Anodized - 12"

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.