Go to Mick & Ralph's shop in the Freeside area of the New Vegas strip. Talk to Mick to buy the Displacer Glove.
In "Fallout: New Vegas," guns and explosives are the most powerful types of weapons, but players who want a challenge can fight enemies with only their fists. The Unarmed skill governs fist-fighting, and the Displacer Glove boosts the power of hand-to-hand combat. When you punch an enemy with the Displacer Glove equipped, a damaging shock wave appears and forces him back. Caesar, leader of a gang of loyal savages, wears a Displacer Glove. You don't need to kill him to get one of your own, though, as you can buy and find Displacer Gloves throughout the Mojave Wasteland.
Go to the Hoover Dam on the eastern side of the Wasteland. Enter the main building and go to the office area. Buy the Displacer Glove from Bardon.
Head to Red Rock Canyon in the northwestern area of the Wasteland. If the Great Khans who live there like you, you can buy the Displacer Glove from the Armorer.
Go inside the Hidden Valley Bunker in the center of the Wasteland. Talk to Knight Torres to purchase the Displacer Glove.
Find the Ruby Hill Mine in the northwest part of the Wasteland. Examine the Jackal Gang member's corpse to get a free Displacer Glove.