The GA Musang Personal Defense Weapon (PDW) by the Government Arsenal. It features a 10" barrel with a 1:10" twist, and an EOTech Sight. Caliber is 7.62 x 37 mm, an original caliber development by the GA, and weight is around 3.3 kg.
<a href="//commons.wikimedia.org/wiki/User:RoyKabanlit" title="User:RoyKabanlit">RoyKabanlit</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>