ISBN: | 978-5-5105-9591-8 |
High Quality Content by WIKIPEDIA articles! The FN Five-seven, trademarked as the Five-seveN, is a semi-automatic pistol designed and manufactured by FN Herstal in Belgium. The pistol is named for its 5.7-mm (.224 in) bullet diameter, and the trademark capitalization style is intended to emphasize the manufacturer`s initials—FN.