Karak
The Karak is a Grineer assault rifle standard issue for Frontier Elite Lancers and Tusk Troopers. Chambered in 5.56×45mm NATOCodex Entry:
"Solid, dependable and deadly. The Karak is a standard issue rifle in many Grineer platoons."
Credits: Warframe By Digital Extremes
Features 3 variants: The Base, Kuva and Wraith and 3 skins via ModularWorkshop.
Base is chambered in 5.66.
Kuva is chambered in 7.62.
Wraith is chambered in 338 Lapua.