The Colt

The Colt is a revolver made by Samuel Colt. Apparently, it was made for a hunter that John Winchester had been searching for many years. According to legend, anything shot by this gun, using one of its thirteen original bullets, will die, including creatures normally immune to any and all weapons.

It was in the possession of Sam and Dean Winchester, who used it to kill demons, vampires and other supernatural creatures.

Appearance
The gun used in the series is actually a replica Colt ball and cap gun modified to fire metallic cartridges. On the barrel of the gun is inscribed the Latin phrase "non timebo mala", meaning "I will fear no evil". On the handle is a carving of a pentagram, with much of the finish removed to give it an aged appearance.

It originally came with 13 bullets - eight were used before the Winchesters obtained it, and they used the other five. It then no longer worked. However, the demon Ruby "fixed" it so that it could kill anything using ordinary bullets.

Story
The Colt was made by Samuel Colt during the siege of the Alamo (approximately, between February 23 and March 6, 1836) for a hunter.



Years later, when John Winchester became aware of the power that the weapon had, he began to search it so that he could use it to kill the demon that killed his wife - the demon Azazel. He and his sons finally obtained it after a vampire killed the owner, Daniel Elkins, and the Winchesters attacked the vampire's nest to get it back. However, John gives it to Azazel in return for Dean's life being spared after an almost-fatal car crash, and at the end of the second season, Azazel uses it as a key to open a gateway to Hell that Samuel Colt had sealed. Dean uses the last original bullet remaining to kill him.

Towards the end of the third season, the gun was stolen from them by Bela Talbot in order for her to get out of her contract with a Crossroad Demon. She told the Winchesters that she gave it to Lilith, but in fact she instead gave it to a demon named Crowley, who hid it. It is then featured in two time-travel episodes, before Crowley returns it to the Winchesters so that they can kill Lucifer.

It is seen once more when the Winchesters travel to 1861. Dean drops the Colt just before being transported back to the present day, where it is retrieved by the saloon owner Elkins, the ancestor of Daniel Elkins, who possessed the weapon at the beginning of the series.

Usage
The Colt can be used to kill most supernatural creatures, such as demons, vampires and phoenixes.

However, it cannot kill Lucifer, who adds that there are 5 things in All Of Creation that the Colt cannot kill (one being himself).

These Might Be What The Colt Cannot Kill - God, Death, Archangels & Reapers

The Colt has a second function: the barrel of it acted as a key to unlock a Gateway into Hell, as seen in the episode 'All Hell Breaks Loose - Part 2'.

Use of the Colt
The following denotes the known uses of the Colt with the original "Samuel Colt" bullets shown in Grey.

Trivia

 * It is worth noting that there are four major Archangels and God that in total make five figures that, possibly, the Colt cannot kill: God, Michael, Lucifer, Raphael, and Gabriel. However, the Colt alone (without Phoenix ashes) cannot kill Eve, which makes this difficult to reconcile. The Colt cannot kill the Four Horsemen either. It is possible Lucifer was referring to the archangels as one of the five things that cannot be killed by the weapon.
 * It's interesting to note that the demons were in possession of the Colt during the entirety of Season 4, yet it was not used to kill angels. In fact, Alastair lamented the fact that the worst they could do to angels was "send them running back to Heaven", This brings some issues to the fore:
 * Scenario: The demons didn't try to use the Colt - The demons were desperate to get the angels off their backs, and it's highly unlikely that Lilith would just happen to forget that she had such a powerful weapon within her arsenal that she wouldn't have at least tried it. Admittedly, if she had any reason not to test it, it would have been due to the risk of losing it during a failed test-shot.
 * Scenario: The demons did test the Colt - If the demons had tested it on regular angels to no avail, Crowley would have had no reason to think the weapon would even stand a chance at taking out Lucifer.
 * Scenario: Lilith didn't know that Bela Talbot had given the Colt to Crowley, and he just hid it as he never wanted to free Lucifer out of his cage. But there is still the question of why he didn´t kill Lilith (who had to be alive for the 66th seal) with it, probably because they are presumed lovers, and wanted to avoid freeing Lucifer without getting undercover and avoiding Lilith death.
 * The Colt has appeared in all six seasons so far and has yet to appear in Season 7.
 * Colt only appeared in Frontierland of Season 6.
 * It's unknown what happened to The Colt after the events of Abandon All Hope ...