First Look: Foxtrot Mike Suppressor-Optimized Upper

A minimalist AR-15 upper receiver designed to be used suppressed.

by
posted on September 17, 2025
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Foxtrot Mike (1)

This limited-production upper receiver from Foxtrot Mike comes built with the bare necessities for an AR-15 pattern upper receiver that will spend most of its life shooting with a suppressor. This includes a longer, rifle-length gas tube with a gas port sized to reduce back pressure and recoil when shooting with a suppressor.

To keep costs down, Foxtrot Mike is not shipping these receivers with muzzle devices, bolt carrier groups or charging handles, with the idea that customers will provide their own parts that fit their specific needs. This is especially true of muzzle devices, as they’re crucial to the successful mounting of any suppressor and can get quite specific depending on size and silencer make and model.

Foxtrot Mike Products Suppressor Friendly Upper Receiver Groups Key Features:

  • Suppressor-optimized gas: Rifle length gas tube reduces back pressure and recoil; no adjustable gas block required. Also available in 11.5-inch mid-length gas systems.
  • Heavy-profile barrel: Added thermal mass for durability, heat control and stability during extended strings of fire.
  • Cleaner, softer impulse: Less blowback, less wear, more control
  • This upper receiver is built for shooters who leave the can on at all times and only remove it as needed for cleaning.
  • Builder-ready configurations:
    • Slick-side billet upper receiver with dust cover
    • 16 inch heavy-profile barrel, ½×28 tpi, suppressor-ready with 15 inch freefloat M-Lok compatible handguard
    • 25-inch heavy-profile barrel, ½×28 tpi, suppressor-ready with 9.5-inch freefloat M-Lok compatible handguard

“Blue-collar shooters asked for a no-nonsense, suppressor-first upper they could trust. We answered with a heavy-duty host that runs softer, fouls less, and lets builders choose their own BCG and charging handle—without paying for parts they’ll replace.”

The MSRP for the Foxtrot Mike Suppressor-Optimized Upper is $249. Visit fm-products.com to learn more about this new upper receiver or other products from Foxtrot Mike.

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