AR15 Parts and Accessories by M&A Parts

A4 M4 Flattop Upper Complete

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  • A4 M4 Flattop Upper Complete

Product Details

Made from 7075 T6 Forging's these M4 Flattop Upper's feature engraved T-Markings and engraved "M4" over the Gas Tube entry hole along with M4 feed ramps and Dry Film Lubed interior. These include the Forward Assist and Ejection Port Cover.

Our A4 / M4 Upper Receivers are made from 7075 Aluminum forgings, that are precision machined to Military / Colt specifications.

They have engraved T-marks painted white, engraved M4" over the gas tube entry and are fitted with M4 feed ramps to enhance reliability.  They are finished off with a Mil-spec hard coat anodizing in Black to enhance their durability along with a Gray Mil-Spec Dry Film Lube (DFL) of the interior to enhance lubricity. These are the best of the best.

Product Details

Military Spec Upper Receiver

High-grade 7075 Aluminum

Various Forgings (Cerro, Brass Aluminum, Anchor Harvey, etc.)

Hard Coat Anodizing in Black

Engraved T-Marks with White Paint

Dry Lube Interior (DFL)

M4 Marked on Front Top

M4 Feed Ramps

Fully Assembled with Forward Assist & Ejection Port Cover

Fits any AR15/M16/M4 lower

M&A Price: $135.00

Was: $150.00

Usually Ships 2-3 Days
Item #
A4 M4 Upper