The Mauser BK-27 27 mm caliber gun of a JAS-39C Gripen of the Royal Thai Air Force. Photo taken at the Royal Thai Air Force Museum.
<a href="//commons.wikimedia.org/wiki/User:RoyKabanlit" title="User:RoyKabanlit">RoyKabanlit</a>
<span class="int-own-work" lang="en">Own work</span>