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Anyone know what those are? Do you power the gun by passing gas or something?
The expelling gas from the fired round is used to reset the action and load the next round into the chamber as opposed to using a spring or manual lever or bolt.
Anyone know what those are? Do you power the gun by passing gas or something?
A portion of the gas from the fired round is redirected either directly to the bolt carrier group (direct impingement, common AR-15 setup) or to a short or long stroke piston that pushes against the bolt carrier carrier group (gas piston, think AK-47, newer 7.62s, etc).
The force against the bolt carrier group expels the spent casing and goes all the way back to allow the magazine to push a new round up and when the bolt carrier group spring pushes back, it chambers the round.
Virtually all semiautomatic firearms operate this way.
Automatic fire uses a modified sear design where the bolt carrier group's final action on return is to push forward on the secondary sear such that it releases the hammer to fire the next round, while holding the trigger down keep the primary sear from stopping the hammer. Same exact use of gas to cycle the bolt carrier group, except the sear design and the mod to the bolt carrier group allow the bolt cycling to actually cycle the hammer as well.
That's for rifles btw. Pistols almost all split the energy on firing the round, where part is used to move the bullet forward and the other part is used to push the slide back, eject the spent casing, allow space for magazine to pop new round up, and chamber next round. This is part of the reason (small part, along with both barrel length and amount of powder per cartridge) that pistols have much lower muzzle velocities than rifles. Shotguns also operate along this principle, albeit with longer barrels and bigger rounds. Most cycle the round by splitting energy between moving ball/pellets down the barrel and pushing backwards on the bolt to cycle the action.
EDIT - and the point is that the person wanting to ban all "gas powered" wants to ban all semiautomatics, period. If the user does not cycle the next round into the chamber manually, then ban it. That would leave pump action/breach load shotguns, revolvers, and bolt/lever action rifles as the only legal weapons.
Last edited by Volobjectitarian; 03-01-2018 at 02:17 PM..
So this law will make various hunting firearms, both rifles and shotguns, illegal.
Guns like the Browning Maxus, Silver and new Auto 5. The Remington 1100 series and Versa Max. The Beretta A300. All shotguns.
The Browning BAR and Remington 750 in rifles.
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