Videos tagged with Sheet Metal Receiver

This video explores the surprising similarities between the Beretta AR70 and the SIG Sauer 550 series rifles, stemming from a brief 1960s collaboration between the two manufacturers. Despite a subsequent 'divorce' where each company pursued independent designs, both ended up with rifles sharing a stamped sheet metal receiver, long-stroke gas piston system, and reciprocating charging handle. The comparison highlights how both designs, while distinct internally (rotating bolt vs. roller-delayed blowback), share a common external aesthetic and operational layout.

This guide details the field stripping process for the Bushmaster Assault Rifle, a 1970s design influenced by the Stoner 63A. The video highlights its unique gas system and the separation of upper and lower receivers via two pins. It emphasizes the importance of removing the gas system retention bracket and disassembling the bolt carrier group for maintenance. The instruction comes from Ian McCollum, a recognized expert in historical firearms.

This video provides an in-depth update on the AK-50 project by Brandon Herrera, focusing on design iterations and manufacturing challenges. Herrera, the lead designer, details the shift from a milled receiver to a stamped sheet metal design for improved AKM aesthetics and production efficiency. Key technical discussions include the redesign of the ejector mechanism to a traditional 'shark fin' style and the use of 4140 steel for the trunnion. The update highlights the 'skunkworks' R&D approach, emphasizing creative problem-solving on a budget.

This guide details the disassembly and reassembly of the rare Colt CMG-2 light machine gun, as demonstrated by Ian McCollum. It highlights the unique features such as the sheet metal receiver, quick-detach barrel, cam-driven feed mechanism, and unusual bolt design without a traditional extractor. The process involves careful manipulation of the pistol grip assembly and bolt carrier group.