An unknown number of guns are being built with the mechanisms, causing problems for the police and ATF officials. Photo: An ATF agent holds a generic unfinished receiver, back, and one that has been manufactured, front, at an ATF field office in Washington, on May 06, 2014. The ATF is trying to crack down on the trade in the makeshift guns by targeting shops and individuals who offer to turn the unfinished receivers into functional pieces for firearms. (Photo by Bill O'Leary/The Washington Post)

A security guard looks at the models during La Perla’s presentation at the Dream Hotel. Mercedes-Benz Fashion Week, New York City, Spring 2014. From the series “Fashion Lust”. (Photo by Dina Litovsky)

English fashion model Daisy Lowe seen at Christopher Kane at Tate Britain on Day 4 of London Fashion Week February 2017 on February 20, 2017 in London, England. (Photo by SAV/GC Images)

American media personality, socialite and model Kylie Jenner says “rise and shine” with her bra in the second decade of September 2022. (Photo by kyliejenner/Instagram)

Canadian actress and model Shannon Ashley Garcia “Shay” Mitchell early January 2023 discovers flowers that complement her dress. (Photo by shaymitchell/Instagram)

Joy Corrigan is seen on June 24, 2021 in Los Angeles, California. The 26-year-old American supermodel wore a peach bra and matching shorts with a bright yellow handbag in LA for the Alo Yoga do. (Photo by The Mega Agency)

Kim Kardashian seen on the streets of Manhattan on September 10, 2019 in New York City. (Photo by James Devaney/GC Images)

American model Bella Hadid celebrating her 23rd birthday at L’Avenue at Saks Fifth Avenue New York, NY on October 10, 2019. (Photo by David Warren/Sipa USA)