A unique variant of the .45 Auto pistol with a much shorter barrel, it features a custom commander-style hammer, skeletonized trigger, and a snake-skin grip, along with the etched Greek text "καὶ τὸ φῶς ἐν τῇ σκοτίᾳ φαίνει" on the right side and "καὶ ἡ σκοτία αὐτὸ οὐ κατέλαβεν" on the left side, which translates as "And the light shineth in darkness and the darkness comprehended it not." It also has "trench" sights (a groove running along the top of the pistol which the player aims down), rather than having a rear notch and a front post.
Like most unique weapons, weapon modifications cannot be added to this firearm. Compared to its standard counterpart, it has greater DPS, less spread, a greater rate of fire and greater durability, albeit having one less round in the magazine. Unlike the .45 Auto pistol, when aiming down the trench sights, the weapon zooms in more than a regular, un-scoped pistol, making longer range encounters much easier. As with the .45 Auto pistol, it is considered an improved holdout weapon, and can be concealed and taken into weapon-free locations so long as the player's Sneak skill is 50 or greater.
A Light Shining in Darkness (non-player character) - A unique playable variant used by Joshua Graham. It differs from the standard variant by having 50 base and crit damage, 2x crit chance and a min spread of 0.35. It also uses the same Pip-boy icon as the 9mm pistol.
Joshua's Pistol Whippin' .45Honest Hearts - A unique non-playable variant used by Joshua Graham. It differs from the standard variant by being used as a melee weapon.
It is carried by Joshua Graham. It can be retrieved from his corpse if he is killed. Alternatively, it can be found in a footlocker at the Southern passage in Zion Canyon after completion of the Honest Hearts main questline.
The design is loosely based on various Officer-sized compact Colt M1911s. It is not a complete copy, as it should have a reversed recoil plug. The Colt New Agent is the closest equivalent real-world production model.
The phrase engraved on the slide of the pistol is from the Bible passage John 1:5, "And the light shineth in darkness, and the darkness comprehended it not."
pcps3xbox360 If loading a saved game from the main menu in which you have A Light Shining in Darkness 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]