Bloke wipes off his chalkboard to blokesplain the differences between direct gas impingement à la Ljungman AG42, MAS49 etc. and à la AR15.
Note: this video also Blokesplaines AK barrel sploing!
Early direct gas patent: https://www.google.com/patents/US799884
Stoner's patent: http://www.google.com/patents/US2951424
Firearms history, blokesplaining firearms mechanics, mythbusting, shooting sports and kitschy sketches all in one place. An often dry and sarcastic look at whatever takes the Bloke's and the Chap's fancy in the world of guns and shooting.