Foxtrot Mike Products ISU-9 9mm Integrally Suppressed Complete AR9 Upper Receiver - 10"

The Foxtrot Mike ISU-9 gives users an integrally suppressed 9mm upper receiver that works as a complete silencer and upper in one unit. Built around Foxtrot Mike's patented suppressor system, this suppressed upper vents gas through the suppressor to run the action, reducing the need for a heavy bolt and buffer.

Features:

• Chambered in 9mm
• 10" barrel
• Integrally suppressed upper receiver based on the VFM-9 platform
• Fits 9mm AR-pattern lowers
• Six-baffle stack with a stainless steel blast baffle and five 7075-T6 aluminum baffles
• Conical spring in the baffle stack
• Seamless stainless steel outer tube, 1.00" outside diameter, with a removable silicone sleeve
• Barrel ports intersect the lands of the rifling
• Flash suppressor end cap
• Designed to bring tested standard 115-grain 9mm loads to subsonic speeds
• Accommodates 124-grain and heavier ammunition
• 8.6" handguard with 28 full-size M-LOK slots
• Standard M-LOK hardware installs without removing the handguard
• Forward charging and rear charging with a mil-spec AR charging handle
• Heavy duty firing pin spring and extractor spring
• 9mm bolt carrier group
• Suppressor disassembles with common tools for cleaning
• Transferable lifetime warranty

Gas enters the suppressor through precision ports in the barrel, and the back pressure from the suppressor helps cycle the action. That keeps the moving mass down and the cycling smoother, so recoil is softer. The upper was designed to work with the Foxtrot Mike RMB recoil mitigation buffer andd 9mm AR pattern lowers. The ports intersect the lands of the rifling, and the stainless steel blast baffle and five aluminum baffles handle the gas and sound. The seamless stainless tube has a removable silicone sleeve.

The suppressor is designed to bring tested standard 115-grain 9mm loads to subsonic speeds and to accommodate 124-grain and heavier ammunition. Actual velocity varies by load and conditions. An integrally suppressed upper collects more carbon than an unsuppressed 9mm carbine, so it needs more frequent cleaning. It comes apart with common tools to make that easier. The handguard has 28 full-size M-LOK slots, and the standard M-LOK hardware installs without removing it. Users can charge it from the front or the rear, and the rear charging uses a mil-spec AR charging handle.

Foxtrot Mike has built products for the PCC market for over ten years, and the ISU-9 builds on its VFM-9 platform with a patented, serviceable integral suppressor system.