https://stream.echo6.co/videos/watch/25ae5745-ea0f-41b9-a6c6-90045e0cec1b The Zastava M51 is a prototype Yugoslav submachine gun developed before the adoption of the M56. It uses elements of the Beretta M38 (namely the captive recoil spring system) and PPSh-41 (the selector switch and magazine well) along with a collapsing stock reminiscent of the Polish PM63 machine pistol. Documentation on the M51 is very limited, and I don't know many were actually built, but it never went into series production. A big thanks to the Croatian Police Museum (Muzej Policije) in Zagreb for giving me access to film this rare piece for you! Check them out at: https://muzej-policije.gov.hr 0:00 Introduction and overview of Zostava M51 0:25 History of M49 submachine gun and its adoption by Yugoslav People's Army 1:05 Detailed examination of M51's key features 2:48 Disassembly and close inspection of M51 3:53 Markings and historical significance of M51 4:52 Potential usage scenarios and tactical value of M51 5:22 Evolution from M51 to YUGO M Fifty 6 5:47 Discussion on the rarity and documentation of M51 6:06 Conclusion and appreciation to Croatian Police Museum http://www.patreon.com/ForgottenWeapons http://www.floatplane.com/channel/ForgottenWeapons Cool Forgotten Weapons merch! http://shop.forgottenweapons.com Mon, 13 Apr 2026 15:09:24 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/25ae5745-ea0f-41b9-a6c6-90045e0cec1b All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.