The most commonly encountered Khyber Pass copies are of British military firearms, notably Martini-Henry, Martini-Enfield, and Lee-Enfield rifles, although AK-47 rifles, Webley Revolvers, Tokarev TT-33s, Colt M1911s and Browning Hi-Powers have also been encountered. In the United States, a Kalashnikov-style rifle composed of a mix of parts from various style AK rifles is sometimes referred to as a Khyber Pass AK because, like Khyber guns, they are unlike any rifle produced by a factory or issued by a regular military force. The typical example of a Khyber Pass AK is a stamped receiver AKM chambered for the 7.62×39mm cartridge, fitted with the triangular folding stock common to Russian AKS-74 rifles.