Aero Precision M4E1 Enhanced KeyMod 5.56mm NATO, 16 inch, Free-Float Handguard, Ambi 'PHANTOM' Charging Handle, Flip-Up Sights
This Aero Precision M4E1 Enhanced KeyMod AR-15 pairs the companys forged receivers with their free-float Enhanced handguard for a clean, rigid build. It features a 16 inch threaded barrel capped with a three-prong flash hider, polymer flip-up sights, and an ambidextrous 'PHANTOM' charging handle with red anodized latches. The lower incorporates an integral trigger guard and a threaded bolt-catch pin, and the rifle is finished in matte black with Aero 'A' logos on the receiver and handguard.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present from prior use. Please refer to the photos for detailed views.
What’s Included
- Aero Precision M4E1 Enhanced KeyMod 5.56mm NATO rifle
- 1x 30-round Amend2 polymer STANAG-pattern magazine
- Installed polymer flip-up front sight
- Installed polymer flip-up rear sight
- Installed ambidextrous 'PHANTOM' charging handle (forged 7075-T6)
The Enhanced free-float aluminum KeyMod handguard includes a continuous 1913 top rail for mounting and alignment across the receiver and handguard. Aero 'A' logos are present on both the receiver and handguard, and the carbine receiver extension features index numbers for repeatable stock positioning.
The 16 inch barrel is threaded and fitted with a three-prong flash hider. Its exterior shows a matte silver/gray finish, contrasting the matte black receivers and handguard. The rifle uses a STANAG magazine interface and is chambered in 5.56mm NATO with a 30+1 capacity.
The lower receiver integrates a trigger guard and uses a threaded bolt-catch pin. Controls include a left-side 90-degree manual safety selector with pictogram markings and a standard curved trigger. An ambidextrous 'PHANTOM' charging handle made from forged 7075-T6 aluminum with red anodized latches is installed for bilateral operation.
Furniture consists of a six-position collapsible polymer stock with a sling loop and an A2-style polymer pistol grip. Polymer flip-up front and rear sights are installed and ready for use. The rifle is made in the USA and built on Aeros M4E1 platform.




