- M4E1 Threaded Assembled Upper Receiver
- 16.6″ M-LOK ATLAS R-ONE Handguard of choice
- 18″ .223 Wylde Stainless Steel QPQ Barrel, Rifle Length
- Pinned Low Profile Gas Block and Rifle Length Gas Tube
- A2 Flash Hider
- Product comes assembled
The AERO PRECISION M4E1-T 18in .223 Wylde Complete Upper Receiver includes the new ATLAS R-ONE Handguard! 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. 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.
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