SMG mags like MP5

Available in sleek black

Luminous markers

you buy from a team with real field experience

Multiple Storage Pockets: Rear padded pocket

Zak Tool ZAK-87 Key Silencer for ZAK-55 Police OC Holder SMG mags like MP5Zak Tool ZAK 87 Key Silencer for ZAK 55 Silence the Clatter. Stay Focused. The Zak Tool ZAK 87 Key Silencer is made specifically for the ZAK 55 key holder and solves a common problem faced by law enforcement and security professionals noisy, clanging keys. If you're working in quiet zones like courtrooms, hospitals, correctional facilities, or tactical operations, the last thing you want is distracting key noise. The ZAK 87 silencer reduces unwanted