The Assault Rifle is a medium to long range weapon with moderate damage and recoil. The magazine holds 30 rounds in most variants.
There are multiple variations: Standard, Burst, and Scoped, and Heavy, though all are referred to simply as "Assault Rifles". The scoped rifle has a 20-round magazine instead of 30, while the Burst fires in 3-round bursts. The Heavy has a 25-round magazine, and has increased damage.
Shot accuracy can be increased by standing or crouching in place and aiming down the sights until the crosshairs come together.
At less than 50 meters, assault rifles deliver maximum damage; however, as shot range increases, damage output decreases. At the maximum range of 100 meters, the assault rifle will only deliver 65% of its typical damage.
Players might consider aiming for the head with the first shot, as its accuracy is the best. Subsequent shots tend to be less accurate, so aiming for the body thereafter is suggested.
The Epic and Legendary versions of the Assault Rifle and Burst Assault Rifle are frequently referred to by the community as "Scar's" and "Famas", stemming from their real-life counterparts of the same name. They are the only Assault Rifles to receive this "special treatment", despite that many of the other ARs' real-life counterparts are much more well known and frequently used than these weapons.
The following is a list of all the weapons Fortnite's ARs are based off of, with links to their respective Wikipedia articles:
The Scoped AR seems to be loosely based off of the H&K G36, H&K 416, and the AK-12, with modifications that make the weapon act more like a DMR (designated marksman rifle), which combines certain elements of both assault rifles and sniper rifles.
Thermal Scoped AR - M4 Carbine with a thermal scope, front grip, and unusable flashlight and laser sight attachments (all of these come standard issue in US military SOPMOD kits intended for Special Forces units).
Suppressed AR - SCAR-H (with an attached suppressor).
Heavy AR seems to based on AK47
Despite having a grip to lower vertical recoil, the Thermal Scoped AR still has a relatively high amount of vertical recoil.
The Epic and Legendary models for the fully automatic Assault Rifle have several gashes and scars cut into them, a reference to the gun which the model is based on.