Drebin 893 (or simply Drebin) was one of the many members of a group called "Drebin," a huge network of underground gun launderers who replaced ID chips in guns so they could be used by anyone. This Drebin helped out Solid Snake and Hal Emmerich in their mission to take down Liquid Ocelot, but unbeknownst to them, Drebin was also assisting the Patriots by encouraging them to take Liquid out. The Drebins' catchphrase, as seen on the side of his Stryker, was "Eye Have You." He was often accompanied by a hairless pet monkey named Little Gray.

Drebin was a child soldier, under the fold of one of the Patriots' proxy wars, with him being the only survivor out of his family. He was kidnapped by the Ugandan anti-government rebel group, the Lords' Resistance Army (LRA), and raised on the battlefield, during which time he received a scar on the left side of his head. Drebin was eventually recruited as an agent of the Patriots, where he was then placed into the "Drebin" gun laundering company, saying that the real reason he was allowed to launder guns was not because he worked at ArmsTech, but because the Patriots "let him." During the advent of the war economy, his customers included various local militias and small PMCs in countries such as Somalia, the Balkans, Lebanon, Darfur, Chechnya, Timor, Peru, the Punjab, Kashmir, Colombia.