>>64182188
>MAS-49
Wrong, the face of the outlet functions as a cylinder. It lacks piston rings so the fuckhueg dwell time compensates for this. There's no such thing as direct impingement
>the gas is still directly IMPINGEING on the bolt carrier
Wrong again, the gas expands behind the bolt "stem" which is why there's two vents on the bolt carrier. It's not unlike a pneumatic cylinder

>>64182214
The cartridge case functions as a cylinder and the bullet a piston as the gas between them expand

>>64182135
>>64182162
>>64182237
:3c

>>64182239
Indeed