Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver Mid Length Barrel 1-7 Twist 1/2x28 A2 Flash Hider 12 in M-LOK Handguard No

Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver Mid Length Barrel 1-7 Twist 1/2x28 A2 Flash Hider 12 in M-LOK Handguard No. Key features include the addition of quick disconnect sling sockets enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. Specifications for Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Overall Length: 26 in Barrel Length: 14.5 in Barrel Profile: Government Gas System Length: Mid Length Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 1/2x28 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Finish: Magpul Cerakote Color: Flat Dark Earth Gun Model: AR-15 M16 Fabric/Material: 7075-T6 forged aluminum Handguard Length: 12 in Handguard Style: M-LOK w/ Top Picatinny Rail System Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Aero Precision Barrel Material: 4150 Chrome Moly Vanadium Gas Block Journal Size-Length: 0.75 in Weight: 48.5 oz Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Condition: New Country of Origin: USA Features of Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver: M4E1 Upper Features: Forged from 7075 T6 aluminum Precision machined to M4E1 specs M4 feedramps Matte black hard coat anodized Mil 8625 Type 3 Class 2 Laser engraved T-marks Comes assembled with port door and forward assist installed Accepts standard AR15/M16 components Handguard mounting platform is forged into the receiver Works with Aero Precision handguards but also fits most BAR-system handguards Barrel nut wrench included Gen 2 Enhanced Handguard Features: 1pc free float design Built in anti-rotation tabs Scalloped rails Continuous top rail 1.78" inside diameter fits most muzzle devices and 1.5" suppressors Compatible with low profile gas blocks Gen 2 Feature - Quick disconnect sling socket at the 3 6 and 9 o'clock positions Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal Gen 2 Feature - New profile for the continuous picatinny top rail 14.5" 5.56 Mid-Length Barrel Features: Chamber: 5.56 Length: 14.5" Twist: 1 in 7 Threading: 1/2"x28 Material: Chrome Moly Vanadium Finish: QPQ corrosion resistant finish both inside and out Gas Block: .750 Gas Port: .0785 Gas System Length: Mid Weight: 26oz M4 Barrel Extension HP and MPI Tested Package Contents: Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver M4E1 Enhanced Assembled Upper Receiver Enhanced Handguard of choice 14.5" 5.56 Mid-Length CMV Barrel Low Profile Gas Block and Mid Length Gas Tube Product comes assembled What firearm models does the manufacturer say Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver is compatible with? The manufacturer suggests that Aero Precision M4E1 AR-15 5.56x45mm NATO 14.5 in M-LOK Upper Receiver is compatible with AR-15 M16Aero Precision APAR640232M5: M4E1 Complete Upper Receiver AR-15 5.56x45mm NATO 14.5 in Mid Length Barrel 12 in M-LOK Handguard No BCG/CH Magpul Cerakote Flat Dark Earth