Aero Precision M4E1-T Barreled Upper Receiver 5.56x45mm NATO 16" Government Contour Barrel 15" Mod4 Handguard Kodiak Brown

Overview

The Aero Precision M4E1-T barreled upper receiver is chambered in 5.56x45mm NATO with a 16-inch Government contour barrel. Finished in an anodized Kodiak Brown coating, it features an enhanced forging that gives the upper a distinct billet look, complete with a full top Picatinny rail, laser-engraved T-marks, .250 takedown pin holes, and an installed port door and forward assist. This complete upper assembly comes equipped with a low-profile gas block and gas tube, along with the Minimal Optical Deflection (MOD) 4 Handguard. Machined from 6061-T6 aluminum, the MOD 4 handguard is engineered for high stiffness to reduce deflection under load. It attaches via a steel barrel nut to significantly minimize point-of-impact shift when using infrared laser aiming devices. The 7-sided M-LOK interface allows for custom accessory attachment, while four integrated QD sling sockets at the 3, 6, and 9 o'clock positions feature steel liners for enhanced durability and shear load resistance.

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