Aero Precision M4E1 Threaded AR-15 Barreled Upper 16” 5.56 Mid-Length - MOD4 - OD Green

Kickstart your next AR-15 build with the Aero Precision M4E1-T Barreled Upper, offering an enhanced M4E1-T assembled upper receiver that delivers a sleek "billet look" with a new Picatinny profile and laser-engraved T-marks. It comes pre-installed with a port door and forward assist for added convenience. The upper is paired with a 15” MOD4 handguard, designed from durable 6061-T6 aluminum for increased stiffness, reducing deflection under load for enhanced performance. Featuring a full Picatinny top rail and M-LOK slots, it’s perfect for adding accessories, and is compatible with low-profile gas blocks. The 16” 5.56 NATO mid-length barrel is built for reliability, with HP and MPI testing, and comes equipped with a standard A2 flash hider.

Features:

• M4E1-T upper receiver with billet-style enhanced forging
• Pre-installed port door and forward assist
• 15” MOD4 handguard made from 6061-T6 aluminum
• 16” 5.56 NATO government-profile barrel with QPQ finish
• Mid-length gas system compatible with low-profile gas blocks
• Barrel is HP and MPI tested for quality assurance
• Steel barrel nut helps maintain zero with laser devices under load
• Bolt carrier group and charging handle available separately
• Available in OD green