The Kalash Rifle uses 5.56 ammo with an option to switch the caliber to 0.5 or 0.308 in several different types including Full Metal Jacket, Armor Piercing, Explosive, Plasma, Incendiary, Hollow-Point etc. Replace the ugly vanilla assault rifle with Modular Kalash Assault Rifle, a terrific rifle that can be modified in FIVE MILLION different combinations! Inspired by the real world “Kalash”, this weapon comes with 75+ modifications. So if you are looking for a way to visually enhance those assault rifles or replace them, here are a few Fallout 4 assault rifle replacer mods that will come in handy: Modular Kalash Assault Rifle The vanilla Assault Rifle especially, looks extremely ugly. If you have played both Fallout 3 and Fallout 4, then I’m sure you hate the way all the weapons look in Fallout 4.