Why would you lock the slide on a semi-auto?

Ir0nSpIkE

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I came across a few photos of a suppressed Beretta 92, but there's an additional mechanism to lock the slide in forward position. Would the sound difference between a locked (unmoving slide) and a gun with regular action movement be that much?
 
To contain the gas and allow the suppressor to do it's job. Also cuts down on the noise a racking slide makes.
 
On the same general subject, I was recently blown away when I discovered an old 1895 Moisin Nagant revolver design. The cylinder actually shoves up against the barrel just before firing.

Remove the space between the 1st & 2nd "w" then paste it.

w ww.youtube.com/watch?v=vvF4yurWSc0
 
I came across a few photos of a suppressed Beretta 92, but there's an additional mechanism to lock the slide in forward position. Would the sound difference between a locked (unmoving slide) and a gun with regular action movement be that much?

I heard once that some suppressed semi-autos had this feature so the shooter didn't have to pick up the casing afterwards...
 
On the same general subject, I was recently blown away when I discovered an old 1895 Moisin Nagant revolver design. The cylinder actually shoves up against the barrel just before firing.

Remove the space between the 1st & 2nd "w" then paste it.

w ww.youtube.com/watch?v=vvF4yurWSc0

Yup, the only revolver that can be fully suppressed.
 
KAC made a revolver years ago that I believe was based off the Nagant design and involved a Ruger frame, with scope and suppressor. You can also suppress any other revolver and it will be quieter than unsuppressed, but not as optimal of course due to cylinder gap. Depends on the load you're firing I suppose, I would think a .38 target wadcutter would be reasonably quiet.

I've read that locking a slide forward during firing is pretty hard on the frame. Certainly a niche feature that most civilians wouldn't have a need for other than "look what I got I'm so operator" factor.
 
KAC made a revolver years ago that I believe was based off the Nagant design and involved a Ruger frame, with scope and suppressor. You can also suppress any other revolver and it will be quieter than unsuppressed, but not as optimal of course due to cylinder gap. Depends on the load you're firing I suppose, I would think a .38 target wadcutter would be reasonably quiet.

I've read that locking a slide forward during firing is pretty hard on the frame. Certainly a niche feature that most civilians wouldn't have a need for other than "look what I got I'm so operator" factor.

yea that kac wasnt exactly a `revolver` the way you would think of one

1187672633539vc6.jpg


found another picture
revrifleetrevpistolknighthy9.jpg
 
I heard once that some suppressed semi-autos had this feature so the shooter didn't have to pick up the casing afterwards...

I suppose you've never heard of a brass catcher attached to the slide...

-M

You suppose wrong.

If the slide stays in the forward position when fired the casing would remain inside. Just like if you don't open the chamber on a bolt action after firing.

In that case, it wouldn't be semi- auto as OP mentioned, but single shot?
 
In that case, it wouldn't be semi- auto as OP mentioned, but single shot?
Slide action repeater. You can use your weak hand as a brass catcher, and drop cases you found at the range to confuse the enemy.

A slide holding video:
[youtube]Cpsodl0620U[/youtube]

You can see gas going out the ejection port with a 22LR. It is worse with 32/380. A slide lock avoids this.
 
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