The Last Swiss Battle Rifle: SIG-Manurhin 542 (in .243)
This guide details the field stripping and reassembly process for the SIG-Manurhin SG542, a rare civilian semi-automatic rifle. The video, presented by Ian McCollum of Forgotten Weapons, highlights the rifle's AK-influenced internal mechanics, including its gas-piston operation and rotating bolt. Proper disassembly involves removing the receiver cover, recoil spring assembly, and bolt carrier group, with reassembly being the reverse process. A critical safety warning emphasizes ensuring the firearm is unloaded before commencing work.





