The GSL Phoenix is a full-size submachinegun silencer that exhibits extremely high suppression performance and is relatively lightweight for its size. The plethora of mounting options, user-serviceability, and performance pedigree spanning decades, are notable. Note that the Phoenix is an updated version of the legacy MK-9K submachinegun silencer.

In this review, the GSL Phoenix performance metrics depend upon suppressing a subsonic centerfire pistol cartridge on a roller-delayed blowback submachinegun. How would the GSL Phoenix perform on your 9mm pistol caliber carbine (PCC)?