The Shotguns, Rifles, Handguns all show the Parts added to them, also the Bullets. What they don't show, is the Number of Bullets in the Weapon, so you can easily come facing a raging Enemy with an empty Weapon or just 1 Shot left in the Magazine. You are neither able to reload e.g. the Mosin instantly, after 1 or more Shots have been fired, nor do you see, how many Shots there are still in the Weapon in a tense fight Situation or are able to use the empty Weapon as a Melee-Weapon instead.