ZK 381: Czech Pre-War Prototype Battle Rifle
This expert-level review from Forgotten Weapons details the unique bolt lock-open and release mechanism of the ZK 381, a Czech pre-war prototype battle rifle. Ian McCollum explains how the bolt locks open on an empty magazine and is released by actuating the trigger, highlighting the absence of traditional bolt release levers. The video also provides a detailed look at the gas-operated system and the hammer/sear interaction.











