The .45 Auto pistol is a single-action, semi-automatic, magazine-fed handgun that utilizes .45 Autoammunition. While the .45 AP improved sights modification was cut from the game, the sights are still present on the weapon's default model (pre and post modified versions). This gives the .45 Auto pistol luminescent sights, and as such is very effective in caves and dark areas.
Furthermore, it is considered an improved holdout weapon, and can be taken into weapon-free locations with a Sneakskill of 50 or greater. It is also the strongest silenced hold-out weapon that can be brought into weapon-free locations once the AP silencer mod has been added.
The .45 Auto pistol can fire a total of about 745 standard rounds, the equivalent of 107 reloads, from full condition before breaking. When modded with the heavy duty slide, it can fire a total of about 1120 standard rounds, the equivalent of 160 reloads, from full condition before breaking.
.45 Auto pistol improved sights - it appears as though there may have been an "upgraded iron-sight" mod available for this weapon but it was cut from the final release, and the weapon's default model uses them instead.
pcxbox360 Sometimes, when both modifications are attached to the .45 Auto pistol, it will not show in first person or third person view while in the Mojave Wasteland. [verified]
ps3xbox360 If both mods are attached and you use a weapon repair kit on it, the weapon stops degrading from use and can continue to be repaired past 100% increasing its value and condition. [verified]
pcps3xbox360 If loading a saved game from the main menu in which you have the .45 Auto pistol equipped and drawn, the reload animation takes twice as long as normal. This can be solved by simply switching to another gun and then back again. [verified]
pcps3xbox360 Sometimes when aiming down the sight while in first person view, the gun will disappear entirely, switching to another weapon then back seems to fix the issue. [verified]