AR-15 FM-9 16" 9mm Upper Receiver M-LOK Assembled Black

Best price

$430.99at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$430.99checked Sep 30, 2026	Check store	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

About this part

The AR-15 FM-9 16" 9mm Upper Receiver M-LOK Assembled Black is a 16" 9mm upper receiver from FM Products Inc. One store lists it, Brownells at $430.99.

Fits and works with

Caliber: 9mm · Shop matching ammo
Bolt: 9mm · Bolt carrier groups
Barrel length: 16" · Handguards

Specifications

Manufacturer: FM Products Inc
Color: Black
Platform: AR-9
Barrel length: 16"
Length: 16

From the manufacturer

Complete Flattop Upper for Pistol Caliber AR-15 Carbines

The Foxtrot Mike Products 9mm Upper Receiver comes fully assembled and ready to drop on any pistol caliber lower receiver that uses Glock magazines. With its full-length Picatinny top rail and M-LOK compatible handguard, the Foxtrot Mike 9mm Upper offers plenty of mounting space for optics and other accessories.

A unique interlocking connector between the upper receiver and handguard ensures the barrel nut will not work loose over time.

Premium Melonite-finished 4150 carbone steel
Button-rifled bore, 1-10" twist
½"-36 threaded muzzle
Ambidextrous, non-reciprocating forward charging handle
Bolt/carrier unit with hard Melonite finish, too

Engineered to function reliably, no matter which manufacturers’ lower it’s mated with, the Foxtrot Mike 9mm Upper Receiver is forgiving enough to cycle even the most economical (we’re not saying "cheap"!) steel, brass, or aluminum cased ammo.