Description

Aero Precision’s M4E1-T MOD4 14.5" 5.56 NATO Barreled Upper is built for durability, customization, and precision. The MOD4 13.5" handguard, crafted from 6061-T6 aluminum, offers a balance of strength and ergonomics, minimizing optical deflection under load. Its seven-sided M-LOK interface provides ample mounting options, while four QD sockets with steel liners ensure long-term reliability.

This upper includes a 14.5" 5.56 NATO barrel with a mid-length gas system for smoother cycling and reduced recoil. The government-profile barrel features a QPQ finish, a .750" gas block journal, and M4 feed ramps for enhanced reliability. A standard A2 flash hider is installed but not pinned or welded, making it ideal for customization.

Features:

  • 14.5" 5.56 NATO barrel with mid-length gas system
  • M4E1 threaded upper with billet-style look
  • MOD4 13.5" handguard with full Picatinny rail
  • 7-sided M-LOK for accessory mounting
  • Four QD sling sockets with steel liners
  • 6061-T6 aluminum handguard
  • Low-profile gas block and gas tube included
  • Laser-engraved T-marks
  • Standard A2 flash hider (not pinned or welded)

    Specifications:

    Barrel Coating: QPQ Nitride
    Barrel Contour: Government
    Barrel Length: 14.5
    Barrel Lining: QPQ Nitride
    Barrel Material: Steel
    Brand: Aero Precision
    Caliber Gauge: 5.56 NATO
    Color: Black
    Finish: Hardcoat Anodized
    Gas System Length: Mid-Length
    Gas System Type: Direct Impingement
    Handguard: 13.5 in Freefloat Rail
    Muzzle Device: A2 Flash Hider
    Thread Pattern: 1/2 X 28Twist Rate1:7

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