Holdout weapons

Holdout weapons are weapons which can be sneaked into areas where weapons are normally confiscated, primarily seen at the three Strip casinos: the Gomorrah, the Tops, and Ultra-Luxe. Weapons classified as holdout weapons depend on the player character's Sneak skill, though the lists are rather limited regardless. Internally, these lists are referred to as "Holdout Weapons" and "Improved Holdout Weapons," depending on whether the player character's Sneak skill is below 50 or at least 50, respectively.

Overview
At certain points in the course of the game, the Courier may have their weapons confiscated from them, in which they will then be presented with an option to retain some of their weapons in the form of a dialogue option, which usually ends with the text " ." Selecting this option will result in retaining a small subset of their weapons; what weapons are retained depends on the Sneak skill.

The complete list of locations that confiscate weapons and allow the option to keep (improved) holdout weapons is:
 * Gomorrah
 * The Tops
 * The Ultra-Luxe
 * The Fort
 * Camp McCarran interrogation room (when interrogating Silus)

Holdout weapons
These weapons are always concealable and able to be brought into weapons-free areas, regardless of Sneak skill. Many of these weapons can be purchased from the merchant Mister Holdout, who can be found near the entrance of the Gomorrah casino.
 * Note: Unique weapons are highlighted with a darker background.
 * Note: Melee Weapons and Unarmed damage is doubled in V.A.T.S.

Improved holdout weapons

 * See also: Fallout: New Vegas improved holdout weapons

These weapons can be brought into weapons-free areas should the Courier have a Sneak skill of 50 or higher. Bonuses from temporary effects, such as ¡La Fantoma! or Stealth Boys, are counted when determining the skill level.

Note that this list does not replace the standard list of holdout weapons; weapons from the standard holdout weapons list can always be brought into weapons-free areas, regardless of skill.


 * Note: Unique weapons are highlighted with a darker background.
 * Note: Melee Weapons and Unarmed damage is doubled in V.A.T.S.

Bugs

 * The companion-specific versions of some improved holdout weapons are not included in these lists, and will be confiscated when these companions enter casinos. This includes melee weapons such as Cass's combat knife and Raul's lead pipe, which differ from the normal versions only in that they cannot be taken by the player character.
 * ED-E's integrated weapons can be brought into weapons-free areas as holdout weapons, but only if the Courier's Sneak skill is below 50. This is caused by ED-E's weapons being included on the holdout weapons list but not the improved holdout weapons list.
 * Rex's Bite "weapon" is not classified as a holdout weapon and will be confiscated.
 * Occasionally, weapons carried by companions will not be returned after exiting a casino. Therefore it is advisable to safely store any unique weapons before entering any casino.