IS THIS A REACTIONLESS DRIVE OR A PERPETUAL MOTION MACHINE?

[kolbacict]

For some reason, it do not oscillate for me.
does not oscillate on its own.

[George1]

A good discussion occurs here! Thanks a lot for it! Let me join this discussion too!
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Please look again at the link https://www.youtube.com/watch?v=xX14NK8GrDY
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1) The violation of the law of conservation of linear momentum, which is described in the link above, can be used for a substantial decreasing of the recoil of any standard firearm as this does not influence in any way this standard firearm's range. (Besides in principle it is possible to use the new mechanical effect several times in a row thus reducing the recoil practically to zero.)
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2) The violation of the law of conservation of linear momentum, which is described in the link above, can be used for designing of an entirely new kind of a shock-absorber. The latter can be installed on any vehicle thus saving human lives and/or preventing injuries.
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3) The violation of the law of conservation of linear momentum, which is described in the link above, can be used for designing of a reactionless drive devices of various kinds.
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4) The violation of the law of conservation of mechanical energy, which is described in the link above, can be used for designing of a perpetual motion machines of various kinds. 
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Note. Extremely important seems to be item 2. The new mechanical principle (described in the link above), if used in any standard vehicle, CAN SAVE HUMAN LIVES AND/OR PREVENT INJURIES!
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Looking forward to your comments.

[nix85]

kolbacict why the counterbalance, it should not be there.

how do you mean no oscillation

it should be double arm, each with two springs against side walls, fired in counterrotation.

like two of these in parallel

[kolbacict]

it was just an old device with a steel ball rolling along a chute. It was a pity to break off the chute. I took pains, I did it before. I thought it would not hurt. And this was done in haste.
If necessary, we will redo it. Well, it oscillate, of course. 10-20 damped oscillations.
What should be? 

[nix85]

again, two arms in counterrotation