Comments by "" (@neutronalchemist3241) on "The Rasheed: Egypt's Semiauto Battle Carbine From Sweden" video.

  1. Just to be clear. The AR10 / AR15 system is as much as a “real direct gas impingment system” as this one. Only the point of application of the pressure of the gas changes (from the top of the bolt carrier to directly behind the chamber), not, in any way, the way the gas is used, pushing directly the bolt carrier. In the AR, like here, in the bolt carrier, there is a cup, a “blind hole” where the gas ends and the pressure applies. If you call the one of the AR “a cylinder”, then that “cup” of the Rasheed is a cylinder as well and, if you call the back of the bolt head of an AR a “piston” (that is not) then what you call in the Rasheed an “open gas tube” is a piston as well.
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  2.  @ForgottenWeapons  No cylinder is completely sealed. Both the one of the AR and the one of the Rasheed are exactly as sealed as it's requred for the action to work. Had the diameter of the "open gas tube" of the Rasheed been a little more closely fit with the "cup", that would have made it a "not true gas impingement rifle"? Mind that many true gas piston actions had not that much sealing of the piston (IE the piston of the M1 Garand is a simple button), because all that sealing is not required for the action to work. And the AR15 works without gas rings either. The sealing is not required for the action to work. They are there only to mantain the action cleaner.
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  3. Valhalleluja! https://youtu.be/S9WWz95ripA
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  4.  @oldscratch3535  It doesn't matter what, or who, you believe either, for that matter. Physics doesn't work according to your wishes. According to Stoner, the AR action "is a true expanding gas system instead of the conventional impinging gas system". Unfortunately that's EXACTLY how the Rasheed, or the MAS 49, actions work. Thanks to gas expansion. Have you noticed how the "open gas tube" of the Rasheed, or of the MAS 49, enters INTO the bolt carrier, instead of simply resting against it's flat face? It's because, to work, EXACTLY like in the AR action, they need pressure build and gas expansion for a certain time. Not simply a supposed "kick" of the gas against the bolt carrier. So, or all of those system are direct gas impingement, or none of them is.
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