Aero Precision M4E1 5.56mm 16in M-LOK Upper Receiver HBAR Mid-Length Barrel 1-7 Twist 1/2×28 15in M-LOK Handguard Gen 2 CMV Anodized Black

Aero Precision M4E1 5.56mm 16in M-LOK Upper Receiver HBAR Mid-Length Barrel 1-7 Twist 1/2×28 15in M-LOK Handguard Gen 2 CMV Anodized Black. This is a streamlined design that only needs eight screws to mount a free-floating handguard making these AR15 Upper Receivers a more robust durable system that you can count on. This complete upper receiver even comes with an A2 flash hider and Picatinny rails so you are immediately ready to mount optics and take it to the range after installing it on a lower receiver. Pick one up today to complete your carbine build Specifications for Aero Precision M4E1 16in 5.56mm Complete Upper Receiver with Flash Hider: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Overall Length: 26 in Barrel Length: 16 in Barrel Twist Rate: 1-7 Firearms Threads Per Inch: 1/2×28 Handguard Type: Free-Float Muzzle Device: A2 Flash Hider Gun Model: AR-15 Fabric/Material: 4150 CrMoV 7075-T6 Aluminum Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Handguard Style: M-LOK w/ Top Picatinny Rail System Gun Rail: M-LOK Gun Type: Carbine Gun Make: AR Platform Barrel Material: 4150 Chrome Moly Vanadium Weight: 48.5 oz Bolt Carrier Group Included: No Charging Handle Included: No Magazine Included: No Condition: New Country of Origin: USA Threads per Inch: 1/2×28 Features of Aero Precision M4E1 16in 5.56mm Complete Upper Receiver with Flash Hider: Laser engraved T-marks Comes assembled with port door and forward assist installed Handguard mounting platform is forged into the receiver Works with Aero Precision handguards but also fits most BAR-system handguards 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 .0785 Gas Port M4 Feed Ramp Extension HP and MPI tested Package Contents: Aero Precision M4E1 16in 5.56mm Complete Upper Receiver with Flash Hider Gen 2 Enhanced Handguard Barrel Nut Wrench What firearm models does the manufacturer say Aero Precision M4E1 16in 5.56mm Complete Upper Receiver with Flash Hider is compatible with? The manufacturer says that Aero Precision M4E1 16in 5.56mm Complete Upper Receiver with Flash Hider is compatible with AR-15 M16Aero Precision APAR600218M97: M4E1 15in Enhanced M-LOK Complete Upper 16in 5.56 HBAR CMV Mid-Length Barrel Anodized Black