Setsuko-Arasaka "PMS" Sub-Machine Gun

Setsuko-Arasaka "PMS" Sub-Machine Gun is submachine gun produced by Setsuko-Arasaka (a division of the parent company) now produces their Police/Military/Security SMG in the United States at their new, automated Night City plant Designed for low-profile corporate security and paramilitary forces where discretion is valued over raw firepower, the weapon fires a subsonic, caseless 7mm bullet paired with a built-in Sonex suppressor. Early models of this weapon gained the reputation of being fussy about ammo, and rumors surfaced that the weapon interface caused peripheral vision hallucinations. These problems were due to subcontractors substituting inferior or non-spec parts. The new PMS has been put through exhaustive testing to overcome all earlier problems.

Source

 * Chromebook Volume 1, pg.44
 * Blackhand's Street Weapons, pg.18