Aero Precision M4E1 Threaded Complete Upper Features
The 16-inch barrel is constructed from 4150 CrMoV steel with a QPQ finish for enhanced durability and corrosion resistance. It features a mid-length gas system and a 1:7 twist rate, making it versatile for a wide range of ammunition. The ATLAS R-ONE handguard provides a slim profile, full M-LOK compatibility, and a lightweight design while maintaining strength. Its quick disconnect sling sockets at multiple positions add convenience for versatile sling setups.
The M4E1 threaded upper receiver is designed with an enhanced forging for a “billet look” and includes laser-engraved T-marks, M4 feed ramps, and a pre-installed port door and forward assist. This product does not include a BCG or charging handle, giving users flexibility to customize their build.
Aero Precision M4E1 Threaded Complete Upper Specifications
- Manufacturer: Aero Precision
- Model: M4E1 Threaded Complete Upper Receiver
- Cartridge: 5.56 NATO
- Barrel Length: 16″
- Gas System: Mid-Length
- Barrel Material: 4150 CrMoV Steel
- Handguard: 15″ ATLAS R-ONE, M-LOK Compatible
- Receiver: M4E1 Threaded, Anodized Black
- Gas Block: Low Profile, .750″ Journal
- Thread Pattern: 1/2×28 (A2 Flash Hider Installed)
- Twist Rate: 1:7
- Features:
- M4 Feedramps
- Laser Engraved T-Marks
- Port Door and Forward Assist Pre-Installed
- Lightweight ATLAS R-ONE Handguard (1.3″ ID, 1.5″ OD)
- Quick Disconnect Sling Sockets
