The MAC-10 Silver is a CS:GO skin from The Bank Collection and was introduced on 1 May 2014.
Steam Market
Skinport
All CS:GO Silver Skins
Introduced: 14 August 2013
The Office Collection
Introduced: 1 July 2014
The Cobblestone Collection
Introduced: 1 May 2014
The Bank Collection
Introduced: 03 December 2020
The Ancient Collection