The SMG Silencer is an attachment in Modern Combat 5: Blackout.
Modern Combat 5: Blackout Edit
The SMG Silencer is the first silencer unlocked for submachine guns. Like other silencers, it increases weapon accuracy at the expense of damage and range, as well as reducing muzzle flash and reducing the weapon firing sound.
As with all suppressors, it also prevents the player from appearing on the enemy radar when firing, which can provide a significant stealth advantage.