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Old 01-09-2017, 11:33 PM
pgb205 pgb205 is offline
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Default Slingshot operation on MP2.0

Got the 2.0 but am trying to figure out how the slingshot method is supposed to work. Depressing the slide lock is difficult and I understand that SW in fact recommends the slingshot method. IE pulling the slide as far back and releasing, causing the slide to close.

For me this doesn't work on either inserted empty mag or no-mag. I'm not sure if my handgun is faulty or if it's just a correct operation, which would be disappointing as it's almost impossible to depress the slide-lock (yes, I've oiled it plenty).

Any suggestions or comments are welcome.
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Old 01-09-2017, 11:52 PM
Miglo Miglo is offline
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Here's what I've noticed on mine..
1. With the empty mag out, slide lock is easy to depress but slide will not lock open unless you manually press slide lock up while pulling back
2. With empty mag in, and slide pulled open, the mag follower makes it a bit hard to depress slide lock
3. Neither of the previous mentions allows slingshot operation
4. Mag fully loaded and in, sling shot operation works great

I've only shot a 100 rounds through mine so far and the issue I have is after the last round goes through, the slide doesn't always stay locked open? Someone told it still needs a bit longer to break in and then it shouldn't act up anymore. We shall see...
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Old 01-10-2017, 12:03 AM
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Can someone who has a new 2.0 manual photo copy and post the page that describes the operation of the new slide lock?
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Old 01-10-2017, 12:08 AM
pgb205 pgb205 is offline
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Quote:
Originally Posted by CB3 View Post
Can someone who has a new 2.0 manual photo copy and post the page that describes the operation of the new slide lock?
I would gladly do this, if you tell me which page. I can't find it explicitly mentioned anywhere.
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Old 01-10-2017, 12:25 AM
Miglo Miglo is offline
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Quote:
Originally Posted by CB3 View Post
Can someone who has a new 2.0 manual photo copy and post the page that describes the operation of the new slide lock?
I could post a photo, but it only mentions the slide stop 4 times in the manual for Gun Inspection, Clearing Misfires, Unloading and field stripping. All 4 times it just says the same thing:

"Pull the slide fully to the rear, press upward on the slide stop while letting the slide move slightly forward thereby locking the slide open."

Other than that, for loading you pull the slide back and release it as stated in my earlier post
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Old 01-10-2017, 01:30 AM
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What I'm really looking for is a description of the function of the new little button on the left side in front of the slide stop.

I wonder if the manual has not yet been updated? Does it say 2.0 on the cover?
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Old 01-10-2017, 10:12 AM
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Quote:
Originally Posted by CB3 View Post
What I'm really looking for is a description of the function of the new little button on the left side in front of the slide stop.

I wonder if the manual has not yet been updated? Does it say 2.0 on the cover?
S&W customer service, told me it's not a button...it's part of the slide lock itself. and it reduces the ability for the slide to auto release. I assumed they meant it won't go into battery when a mag is slapped in. I swear it looks like a button to me too though.

No m2.0 manual on the S&W website yet...the M&P pistol manual that is there is copyright 2015
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Old 01-10-2017, 02:57 PM
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Default Slingshot operation on MP2.0

that's what I've read too..


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Last edited by Shield9mm; 01-10-2017 at 02:59 PM.
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Old 01-10-2017, 03:53 PM
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What the OP describes is entirely normal operation.
No need to over think this.

Quote:
Originally Posted by Miglo View Post
Here's what I've noticed on mine..
1. With the empty mag out, slide lock is easy to depress but slide will not lock open unless you manually press slide lock up while pulling back
2. With empty mag in, and slide pulled open, the mag follower makes it a bit hard to depress slide lock
3. Neither of the previous mentions allows slingshot operation
4. Mag fully loaded and in, sling shot operation works great

I've only shot a 100 rounds through mine so far and the issue I have is after the last round goes through, the slide doesn't always stay locked open? Someone told it still needs a bit longer to break in and then it shouldn't act up anymore. We shall see...
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Old 01-10-2017, 04:56 PM
Lima26 Lima26 is offline
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Quote:
Originally Posted by pgb205 View Post
For me this doesn't work on either inserted empty mag or no-mag.
Empty mag for sure should not allow the slide to close by design and with no mag inserted it sounds like the new slide stop design is doing this.

I'll know for sure tonight when I pick up my M2.0 from the LGS.

Edit: Picked up my M2.0 5" FDE and no issues with slingshotting with no mag.

Last edited by Lima26; 01-10-2017 at 09:39 PM.
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Old 01-10-2017, 11:30 PM
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That little lever is a slide LOCK, not a release.
IMHO, using it as a release may aid in its premature wear.
It is some pretty soft and thin material.

If you think of the violence that happens when you fire a round, letting the slide slam into battery is perfectly fine

The part is not expensive, but a PITA to replace.

just tossing in my experience, and you are not obliged to take it
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Old 01-10-2017, 11:43 PM
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Quote:
Originally Posted by TruckinThumper View Post
LMAO....sorry buddy....

It wont do it with the mag inserted...snort...

Drop the mag and manhandle the slide back....it is a gun, not a newborn
Just try not to rip the skin off your thumb
Pretty snarky for someone who didn't actually read the OP:
Quote:
Originally Posted by pgb205 View Post
Got the 2.0 but am trying to figure out how the slingshot method is supposed to work. Depressing the slide lock is difficult and I understand that SW in fact recommends the slingshot method. IE pulling the slide as far back and releasing, causing the slide to close.

For me this doesn't work on either inserted empty mag or no-mag.
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Old 01-11-2017, 12:39 AM
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1) It's a Slide LOCK, NOT A SLIDE RELEASE. Just because some Hollywood Moron does something in a movie it doesn't mean that is the proper way to handle a firearm. With many semi autos thumbing the Slide Lock to release the slide will cause enough wear over time to cause the Slide Lock to not function properly.

2) To slingshot a slide you pull it all the way to the rear and RELEASE the slide. This means you simply LET GO. As in OPEN YOUR HAND AND ALLOW IT TO SLAM FORWARD. Sort of the way you would use a SLINGSHOT. BTW, it's a handgun, not a Ming Vase, and allowing the slide to slam forward won't cause any real harm unless you make a habit of doing this 1000 times a day. Technically with some semi's dropping the slide on an empty chamber can increase the impact of the slide closing and possibly cause a small amount of wear on the recess that locks the barrel into the slide. Because of this it's advised to only drop the slide when you are actually loading a round into the chamber. However an occasional test to confirm function would likely take several hundreds of years before any excessive wear would be noticed.
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Old 01-11-2017, 01:33 AM
pgb205 pgb205 is offline
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Quote:
Originally Posted by Lima26 View Post
Empty mag for sure should not allow the slide to close by design and with no mag inserted it sounds like the new slide stop design is doing this.

I'll know for sure tonight when I pick up my M2.0 from the LGS.

Edit: Picked up my M2.0 5" FDE and no issues with slingshotting with no mag.
Just want to make sure I got this clear. That you are able to slingshot slide close with no-mag inserted.
For me this doesn't work no matter how much I tried. Pull back, let go, slide gets caught on the slide lock. I cleaned and lubricated several times, but still no luck.

One thing I noticed is that if (with no mag inserted) I slowly 'guide' the slide forward it closes up. But that doesn't sound like
the way it should work.
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Old 01-11-2017, 10:43 AM
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Quote:
Originally Posted by pgb205 View Post
Just want to make sure I got this clear. That you are able to slingshot slide close with no-mag inserted.
For me this doesn't work no matter how much I tried. Pull back, let go, slide gets caught on the slide lock. I cleaned and lubricated several times, but still no luck.

One thing I noticed is that if (with no mag inserted) I slowly 'guide' the slide forward it closes up. But that doesn't sound like
the way it should work.
The slide locks default/rest position is down...pulled down by a spring. If there is an empty mag, the mag holds the slide lock up...or with no mag you hold the slide lock up manually. Other than that the slide lock is pulled down by the spring (without the spring, I would think by gravity) and the slide goes forward.

I can't see it working any other way, or your slide would lock back after every shot.
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Old 01-11-2017, 11:12 AM
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Quote:
Originally Posted by pgb205 View Post
Just want to make sure I got this clear. That you are able to slingshot slide close with no-mag inserted.
For me this doesn't work no matter how much I tried. Pull back, let go, slide gets caught on the slide lock. I cleaned and lubricated several times, but still no luck.

One thing I noticed is that if (with no mag inserted) I slowly 'guide' the slide forward it closes up. But that doesn't sound like
the way it should work.
Yes, I am able to slingshot the slide closed without a mag inserted. Not any different than any other pistol with a slide stop/release.
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Old 01-11-2017, 02:18 PM
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Quote:
Originally Posted by Steved13 View Post
The slide locks default/rest position is down...pulled down by a spring. If there is an empty mag, the mag holds the slide lock up...or with no mag you hold the slide lock up manually. Other than that the slide lock is pulled down by the spring (without the spring, I would think by gravity) and the slide goes forward.

I can't see it working any other way, or your slide would lock back after every shot.
Actually, there is a leaf spring that holds the slide stop down.

Because of spring pressure in the mag, the mag follower rises after the last round is loaded, and a tab on the follower engages the slide stop, pushing it up and overcoming its spring.

Before firing, with the slide in battery and an empty mag in the gun, the slide stop is pressing up against the left bottom edge of the slide.

When the slide retracts, either by firing or manually pulling it back, the slide stop snaps up into the notch in the bottom of the slide and is held up by mag spring pressure. When the slide comes far enough forward under recoil spring pressure, the stop will engage the back of the notch. Now recoil spring pressure holds the slide against the stop.

If the empty mag stays in the gun, the spring pushing up on the slide stop plus the friction caused by the slide recoil spring makes the slide stop hard to press down with a finger.

Remove the mag and the mag spring pressure holding the stop up goes away. Then only the recoil spring pressure has to be overcome to drop the slide stop, but that can be a lot of friction.

With the slide locked back by the stop and the mag removed, if the slide is retracted by any manual method, the friction goes away, the slide stop spring pushes the stop down, and the slide should go forward into battery.

If you try to slingshot the slide to release it when an empty mag is in the gun, the follower is pushing up against the slide stop and it will not drop.

When a loaded mag is in the gun with the slide locked back, the mag follower is not pushing up against the slide stop. Manually retracting the slide will allow the stop to drop under its own spring pressure so the slide can go forward under recoil spring pressure.

With the slide locked back you could also use a finger (usually the thumb) to push the slide stop down when the mag well is empty or there is a loaded mag in there. This can still be difficult depending on how much friction there is between the stop and the slide. This friction can be reduced with some sandpaper.

That's what I understand to be the normal functioning of a slide stop. If the OP tries to manually release the slide lock (slingshot) without a mag in the gun and it won't go into battery, that's a problem. If it won't do it with a loaded mag, that's a problem.

Does the slide stop drop down properly and then the slide not go forward? That would be a slide/recoil spring/barrel problem. But if the slide stop is not dropping down when it should, then you have a slide stop problem.

Last edited by CB3; 01-11-2017 at 02:28 PM.
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