How an AMT Backup works

The AMT Backup was first known as the OMC Backup. This early variant was produced in .380 ACP caliber in El Monte, California. OMC produced a short run of these pistols before the tooling was purchased by Arcadia Machine & Tool, who took over production.

The original AMT Backup was produced with a single-action trigger mechanism, while the later "Large Frame" Backup used a double-action-only mechanism. These pistols were manufactured by AMT and later Galena Industries (until November 2001).

The AMT Backup is a small semiautomatic pistol available in a wide range of calibers: .22 LR, .380 ACP, .38 Super, 9×19mm, .357 SIG, .40 S&W, .400 Corbon and .45 ACP have all been offered. This pistol was designed to be carried as a backup gun by law enforcement and security professionals or anyone desiring a small concealable weapon. Its marketing slogan was "the smallest, most powerful" backup weapon available.

The AMT Backup line of handguns is now being marketed by High Standard Manufacturing.

https://en.wikipedia.org/wiki/AMT_Backup

AMT Backup full disassembly & assembly
https://www.youtube.com/watch?v=8oQOuywqiwM

This video was made with the help of the game World of Guns: Gun Disassembly:
http://store.steampowered.com/app/262410/

Видео How an AMT Backup works канала Si vis pacem , para bellum.