Maria is a unique variant of the 9mm pistol, that has a higher rate of fire, more damage per shot, is more accurate, and has higher durability than the standard variant. Like most unique weapons, weapon modifications cannot be used on Maria. Like the standard 9mm pistol, Maria is also a concealable holdout weapon, so long as one's Sneakskill is 50 or greater.
Durability
Maria can fire a total of about 995 rounds, the equivalent of 77 reloads, from full condition before breaking.
It can only be found in 100% condition on Benny if the Courier decides to kill him either during Ring-a-Ding-Ding! or Render Unto Caesar. It may also be pickpocketed from him. This weapon cannot be obtained if the Courier has Benny crucified.
Two can be obtained by first pickpocketing Maria from Benny while in the Tops when one first meets him and then obtaining another from him by several means while he is inside the Fort.