FB MSBS

MSBS-5,56 Radon (short for Modułowy System Broni Strzeleckiej kalibru 5,56 mm - Radon or English: Modular Firearm System 5.56mm Calibre - Radon) is an assault rifle currently under development as a future service rifle of the Polish Army. There are two basic variants currently being developed, based on a common upper receiver: a bullpup version and a standard version with folding, retractable stock. Thanks to a variety of modules, both variants can be easily transformed into a carbine, sniper rifle or squad light machine gun. Additionally, there exist plans to develop a 12-gauge combat shotgun based on the platform, as well as rifles in common Soviet calibers for export.