FM Products MIKE-9 9mm Front Charging Complete Upper Receiver - 10"
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Foxtrot Mike Products
Overview
The FM Products MIKE-9 9mm Front Charging Complete Upper Receiver is designed specifically for the AR-9 platform, featuring a 10-inch barrel that provides an optimal balance of maneuverability and performance. This complete upper assembly allows for easy installation on compatible lowers, streamlining your build process while ensuring reliable function with 9mm ammunition. Commonly, you'll find this upper in builds focused on 9mm caliber configurations, perfect for those looking for a compact and efficient shooting experience.
Specifications
FM Products MIKE-9 9mm Front Charging Complete Upper Receiver - 10"
November 2026 so far on GunPartPicker
Foxtrot Mike Products FM Products MIKE-9 9mm Front Charging Complete Upper Receiver - 10" ranks #37 of the 793 upper receivers builders have added on GunPartPicker so far in November 2026, behind the Knights Armament 7.62MM SR-25K5 14.5" Upper Receiver KIT, with about 1 in every 200 upper receivers added to builds. Up from #49 in October. Builds with this upper receiver are nearly all chambered in 9mm and nearly all AR-9.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today only Primary Arms has it in stock. Buying today, the lowest price is $399 at Primary Arms, above October's low of $379, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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