Suranam Machine Pistol

Suranam Machine Pistol is Korean-made "minisub," or mini-submachinegun fires the .177-caliber explosive caseless cartridge. It is made of carbon plastics, has a folding wire stock, and due to the small ammo size, the magazine can hold a very large number of rounds. Thanks to a small explosive charge which causes high bullet expansion, the ammunition is efficient, but the weapon's high rate of fire often causes severe overheating problems. The Suranam is a common choice for cyberarm weapon installation.

Warning: If weapon jams/fumbles, there is a 75% chance it willl cook off all the rounds in the weapon, causing 2D6 damage to the firer's arm; armor is halved.

Source

 * Solo of Fortune 2, pg.37
 * Blackhand's Street Weapons, pg.18