when does a straight pull become a pump action?

[meles meles]

You are a god amongst badgers. Do you have any ideas of how to do this right?

All in good time, ooman, all in good time. From an engineering standpoint it's simplicity itself, but the legal weasels and patent attorneys are still wrangling with the priesthood and acolytes...

[WelshShooter]

You are a god amongst badgers. Do you have any ideas of how to do this right?

All in good time, ooman, all in good time. From an engineering standpoint it's simplicity itself, but the legal weasels and patent attorneys are still wrangling with the priesthood and acolytes...

Please spare the badger of compliments, it only hastens his domination of farmer Giles' plot.

From a compliance point of view, if you have to perform two actions to load a round could that circumvent the law? For example, if one had a pump action that extracted the empty case and loaded another round but still required the opposing hand to "release" the bolt by some magical button, perhaps this would no longer be fit to be called a pump action?

From a realistic point of view, would anyone even want this? I'd imagine a straight pull would be better suited for this purpose.

[snayperskaya]

Below is a Romanian PAR-3, an AK variant sold in the US that was...you guessed it...pump action.It lacks a gas system like our straight pulls and the pump mechanism was attached to the redundant gas piston (now an operating rod of sorts) that was in turn attached to bolt carrier like a standard AK.On pulling the pump back it moves the bolt carrier back and cocks the action, when pushed forward it strips a round from the mag and chambers it.....but unlike a pump action shotgun for example if the pump part is pulled back to the rear, cocking the trigger and then let go of it will move forward on its own under the pressure of the bolt carrier recoil spring.Obviously the action will work in the same way as a traditional pump action, which is no good to us but if a mechanism could be worked out that would disconect the pump mechanism from the piston/operating rod/bolt carrier once it is at the rear position (trigger cocked) and allow the action to return (stripping and chambering round) only under spring pressure (as per our straight pulls) but allow the pump slide to return forward manually to re-connect in order to repeat to process would that not be an idea?.


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https://youtu.be/0QcKguS5qhI

[meles meles]

All it needs is for the pushrod to be impinged upon by a small cam at the rearmost point of its travel that disconnects it from the working parts. Those then move forward, free of the connecting rod, which can itself then be 'pumped' forward to reconnect with the working parts when they are in battery. It really is a very simple mechanism. Maybe that's why only a small brained, simple kreecher could think it up...

[poll007]

Consider a straight pull action.
The firer grasps the working parts, or a lever attached thereunto, pulls it back to unchamber and eject a spent round, then releases the working parts which move forward independently of the firer, collect and feed a new round into the chamber and cock the action.

Your point is sensible, but consider rifles such as the k31 or ross rifles that are "straight pull" yet require the user to perform both pulling and then pushing back into battery.

[poll007]

Do you have an idea in mind at all for something if I may ask?

Well as a uni project I'm building a bullpup chassis for my k31, and since I'm using a linkage to make a further forward ambidextrous charging handle, it would be just as easy to link it to under the fore end.
I've tinkered with a few other ideas, but none that couldn't be easily converted to semi auto, but those projects will have to wait until the summer when I finish the current uni work

[joe]

With all this hassle, just stick with a lever release systems

[Blackstuff]

From a realistic point of view, would anyone even want this? I'd imagine a straight pull would be better suited for this purpose.

I think if someone could wrangle something along the lines of below it would sell quite well (assuming the price wasn't ridiculous like the lever release SGC AR);

http://troydefense.com/pumpactionrifle/

[Sixshot6]

From a realistic point of view, would anyone even want this? I'd imagine a straight pull would be better suited for this purpose.

I think if someone could wrangle something along the lines of below it would sell quite well (assuming the price wasn't ridiculous like the lever release SGC AR);

http://troydefense.com/pumpactionrifle/

The reason the Troy exists in the first place is a tragedy, just go to NY or CT to see why. But at least it's more than we have, anyway despite lever release's and MARS actions, it's always nice to have new stuff.

[poll007]

From a realistic point of view, would anyone even want this? I'd imagine a straight pull would be better suited for this purpose.

I think if someone could wrangle something along the lines of below it would sell quite well (assuming the price wasn't ridiculous like the lever release SGC AR);

http://troydefense.com/pumpactionrifle/

I remember seeing the troy par release and immediately going"that work be great in the uk market" only to then find pump actions were banned alongside semi autos aaarggh