Aero Precision M4E1 Threaded Complete Upper, 10.5" 5.56 Barrel, 9" M-LOK ATLAS S-ONE Handguard - FDE Cerakote

With this complete upper receiver, you can finish your new build with confidence that you can handle any situation or that you’re over-equipped. Aero Precision built these AR Handguards & Barrels with their ATLAS S-ONE Handguard and 20in 5.56 Rifle length barrel for top-shelf quality. The handguard included with this Aero Precision Complete Upper Receiver w/ ATLAS S-ONE Handguard includes indexing grooves at the 12:00 position for positive grip control during shooting sessions. Also, the top rail on these uppers is cut from the center of the top rail, reducing the weight. There’s a quick-disconnect sling socket at the 3:00 and 9 o’clock positions so that you can carry your rifle on your side or use a sling for added mobility. Complete your rifle build with this high quality Aero Precision M4E1 Threaded NATO w/ ATLAS S-ONE Handguard Complete Upper Receiver Package.

Specifications:

• Gun Model: M16, AR-15
• Fabric/Material: 4150 CrMoV
• Cartridge: 5.56x45mm NATO
• Barrel Profile: Government
• Gas Block Journal Size-Diameter: .750 in
• Barrel Twist Rate: 1-7
• Handguard Style: Hybrid Rail
• Gun Rail: M-LOK
• Muzzle Device: A2 Flash Hider
• Gun Make: Aero Precision, AR Platform
• Gas System Type: Proprietary

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
• 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
• Compatible with mil-spec AR15 upper receivers and barrels
• 4150 CrMoV, QPQ, gas port drilled
• .0785 gas port
• M4 Feed Ramp Extension
• HP and MPI tested
• Standard A2 flash hider

Package Contents:

• 5.56 CMV Barrel (Carbine Length)
• Low Profile Gas Block
• Carbine Length Gas Tube