Glock operation : frame flex, parts movement, slide stop

[sd_shooter]

So here's an interesting video showing a G19 in slo-mo action. I had some questions:
- I didn't know the little slide stop lever (takedown lever) also jumped around, why does it do that?
- What stops the slide from moving backward? Does it crash into the front rail lugs, or does the spring compress completely and the spring stops the motion, or is it the locking block? Or is it the takedown lever? (seems to drop down twice)



Link for phone users:

https://www.youtube.com/watch?v=7Fr5ccyriJI

[Lead Waster]

I'd guess the takedown lever pops down because ... it's attached to a recoiling gun that has just fired a round!

I think the slide stops because the spring is fully compressed, and probably slide/frame contact.

If you put lighter recoils springs in, the frame gets battered, so I'd think the spring doesn't decellerate the slide enough so that when contact is made, it's hard.

I say that because my friend and I went to a GSSF match and the Glock armorer noted the damage to his G35 frames and said it was the slide hitting the frame hard because of his gamer recoil springs not slowing the slide down enough.

[ruchik]

The recoil spring fully compresses. When it does, it pushes against the inside lip of the recoil spring guide rod tunnel. That's what stops the slide's rearward movement. Nothing else is actually crashing against each other.

On a side note, that's why 1911's with front cocking serrations, if not done properly, can cause the slide to crack/break right behind the guide rod tunnel.

[Corbin Dallas]

- I didn't know the little slide stop lever (takedown lever) also jumped around, why does it do that?
- What stops the slide from moving backward? Does it crash into the front rail lugs, or does the spring compress completely and the spring stops the motion, or is it the locking block? Or is it the takedown lever? (seems to drop down twice)

The spring holding the take down in place is pretty weak and loose. I would guess they all do this.

The locking block is what drops the barrel down and stops the slide from going any farther back.

Interesting to note, this is a gen2 glock 19 2-pin model. I'd love to see the same video with a 3 pin version.

[tophatjones]

The recoil spring doesn't arrest the slide's rearward motion, it is just there to bring the slide forward into battery. The slide's rearward motion is stopped by steel inserts in the frame, the slide contacting it just forward of the frame rails. I think the front frame rails and this contact surface are the same piece of steel insert.

[TacticalThug]

Thank you for the YouTube link, I'm mobile

[Lurch762]

Does a ransom rest simulate limp wristing? The Glock FTE'd on 2 of the shots.

[1911R SSS]

Damn, that looked disgusting