Solid, dependable and deadly. The Karak is a standard issue rifle in many Grineer platoons
—In-Game Description
The Karak is an accurate Grineer assault rifle that was introduced in update 11.5. It features high damage, high accuracy, and a good fire rate, offset by its fairly low magazine size and limited critical hit potential.
The Karak is a solid anti-Corpus weapon due to its slight bias towards Impact damage over Puncture and Slash damage. Consider adding Rupture and Bane of Corpus mods to further increase its effectiveness against them.
Trivia
The end of the bound strap on the midsection of the gun has movement/cloth physics like the Syandanas; it wiggles whilst moving and firing the weapon.
On its first look, the rifle appears to be a hybrid of M4 Carbine and AK-47 rifles, with an upper casing scheme with Grineer, hence the name: KAR+AK.
This is the second official Grineer Assault Rifle introduced in the game, as Grakata is considered to be an Submachine gun. While the first is the Hind.