Clip

Ammo clips are an ammo pick-up containing 10 bullets for the pistol or chaingun (20 at the I'm Too Young To Die and Nightmare! skill levels). The clips dropped by zombie troopers (when they are killed) contain only 5 bullets (10 at the I'm Too Young To Die and Nightmare! skill levels).

Each bullet does between 5 and 15 hit points of damage (determined using Doom's pseudorandom number generator).

Although referred to in the game as clips, the objects depicted are clearly magazines; that is to say, they contain bullets rather than merely hold them in place.