Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 18in 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized. The R-ONE handguards are designed with size and weight in mind while still providing plenty of real-estate to accommodate any attachment needs the end user may have. 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. Specifications for Aero Precision M4E1 Threaded 18in 5.56 Complete Upper Receiver with Flash Hider: Manufacturer: Aero Precision Caliber: 5.56x45mm NATO Barrel Length: 18 in Gas System Length: Rifle Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2×28 Muzzle Device: A2 Flash Hider Gun Model: AR-15 Condition: New Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Handguard Style: Hybrid Rail Gun Type: Rifle Gun Make: AR Platform Included Accessories: Standard Gas System Type: Proprietary Magazine Included: No Country of Origin: USA Features of Aero Precision M4E1 Threaded 18in 5.56 Complete Upper Receiver with Flash Hider Enhanced forging that gives the upper receiver a “billet look”. Picatinny profile that blends seamlessly with our Enhanced Series Handguards. .250 takedown pin holes. Laser engraved T-marks. Includes port door and forward assist installed. Full top picatinny rail for optional attachments. 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. Package Contents: Aero Precision M4E1 Threaded 18in 5.56 Complete Upper Receiver with Flash Hider What firearm models does the manufacturer say Aero Precision M4E1 Threaded 18in 5.56 Complete Upper Receiver with Flash Hider is compatible with? The manufacturer says that Aero Precision M4E1 Threaded 18in 5.56 Complete Upper Receiver with Flash Hider is compatible with AR-15 M16Aero Precision APAR700705M8: M4E1 Threaded 5.56mm Complete Upper Receiver 18in 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized
Ghost Firearms Vital Complete Upper Receiver .300 Blackout 16in Pistol Length 4150 Light HBAR Barrel 1-8 Twist 11in M-LOK Free Float Hand Guard A2 Original price was: $299.00.$263.12Current price is: $263.12. 
CMMG DISSENT Upper Receiver Mk4 300BLK 6.5in 1-7 Twist 5/8x24 Thread Zeroed Linear Compensator Coyote Tan Original price was: $1,399.95.$1,199.00Current price is: $1,199.00. Aero Precision M4E1 Threaded 5.56mm Complete Upper Receiver 18in 1-7 Twist A2 Flash Hider ATLAS R-ONE Handguard Black Anodized
Original price was: $665.00.$599.99Current price is: $599.99.
