This video compares the rate of fire and controllability of three open-bolt submachine guns: the WWI MP18, the WWII MP40, and a modern M11A1 with a Lage Mk31 A2 conversion. While historical SMGs like the MP40 offer excellent controllability due to slower rates of fire and design, modern conversions like the Lage kit significantly increase ROF. Factors influencing controllability include gun weight, bolt weight, spring tension, and ammunition power.
This video details the ejection mechanism of the ROF firearm, focusing on its fixed rod ejector. Mark Serbu explains how the ejector rod, integrated into the bolt, interacts with the spent casing to facilitate ejection as the bolt cycles rearward. High-speed footage and close-up analysis of the bolt assembly are used to illustrate the process, highlighting the importance of proper component function for reliable operation.
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