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Slide lock starting to fail


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#1 chuck ram

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Posted 20 January 2013 - 02:37 PM

I own the MKII.

So after many rounds and wear and tear, the slide is starting to fail to lock back on the last round. Now I am wondering what is the simplest or easiest way to get the lever to push up higher into the slot (where it locks) when the mag is empty?

The back of the slot itself IS starting to get rounded, but I think that's not too big of a problem as long as the lever can be pushed up higher on an empty mag.

#2 Outlaw1995

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Posted 20 January 2013 - 05:02 PM

I would check a few things... since you said you've fired the gun so many times... First off, check the bb follower. The notch on the side may be rounded. Second, how stiff is the magazine spring? Perhaps the magazine spring isn't pushing the bb follower up with enough pressure to activate the slide stop. Third, I would clean and re-lubricate the slide. Be sure to clean the hole that the slide stop lever goes into. There may be grime that is not allowing the slide stop lever to move freely... (I don't think that's the issue, but just to be sure)

What slot are you talking about? Also, can you lock the slide to the rear if you manually push up on the slide lock when racking the slide back?

#3 chuck ram

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Posted 20 January 2013 - 08:19 PM

Yea locks no problem if I manually push the lever up. The slot I'm refering to is the slot in which the slide lock lever goes up into to lock the slide back.

Checked the magazine spring and bb follower, made sure there weren't any burrs that were preventing it going as far up as it can.

What I believe to be the problem, is the slot in which the slide lock lever goes up into is worn a little bit. And because the magazine doesn't seem to push the lever as high as it can go, it catches the slide only half way in the little slot, instead of fully engaging it (slock lock going all the way up to the top of the slot). Because it is a little big worn, going up half way into the slot it easily slides out since some of the material is worn away on the slide. Dunno if i'm explaining it clear enough haha, if not I'll get a picture of what I am talking about.

#4 Outlaw1995

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Posted 20 January 2013 - 08:45 PM

I think I understand where you're coming from. So the notch (or slot) that the slide lock lever pushes up into to lock the slide back... the rear bit is worn and rounded so that it doesn't full catch. Sounds like you will need to do some re-finishing or dremeling to get that slot back to a straight line and not rounded. Take a picture just so we're sure. You can do the mod I just said, or submit an RMA and get your gun fixed right by a KWA tech. kwausa.com/support

Edited by Outlaw1995, 21 January 2013 - 06:34 AM.


#5 Chuck S

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Posted 21 January 2013 - 04:26 AM

The slide wears because the only way to close it is to depress the slide stop.  You should be able to square off the rear of the notch with a file -- NEVER use a Dremel tool! -- but confirm it's the slide that's worn and not the slide stop which is a less expensive part (but probably out of stock in the Pro Shop).

-- Chuck

#6 Outlaw1995

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Posted 21 January 2013 - 06:34 AM

View PostChuck S, on 21 January 2013 - 04:26 AM, said:

The slide wears because the only way to close it is to depress the slide stop.  You should be able to square off the rear of the notch with a file -- NEVER use a Dremel tool! -- but confirm it's the slide that's worn and not the slide stop which is a less expensive part (but probably out of stock in the Pro Shop).
Good catch Chuck S. chuck ram, please get a picture up to see if the slide's the problem. If we can't identify that it's the slide stop lever's notch, figure out it's not the slide stop lever's fault, or you don't feel comfortable doing a modification yourself, you can ALWAYS submit an RMA ticket and ship it off to KWA to get it fixed right.

#7 chuck ram

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Posted 24 January 2013 - 01:53 PM

Yep it is the slide notch I am talking about, the bottom is rounded a bit. I will file it square, but I was also wondering is there away to make the slide release leaver to get pushed up higher from an empty mag? If I can file it square and get the lever to engage higher I believe the wear will be less over time.

#8 Outlaw1995

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Posted 24 January 2013 - 02:21 PM

The only way to make the slide lock lever rise slightly higher is to get a stiffer magazine spring, a new bb follower and add a little material under the slide lock lever area where it engages the bb follower. But doing that sort of modification is unnecessary. You can file the slide catch notch to get it back to a point and see if it makes a difference.... this mod voids warranty I'm assuming.

Or, sending it in is another option.

#9 Cpapp

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Posted 22 February 2013 - 06:33 AM

Late post, but it is a solution once you fix it. I run a plastic slide(with gg) and my notch hasn't worn down yet, but I think it's because instead of pressing the slide release button, I just put in a new mag and rack the slide back. Hope this helps

#10 General Pickle

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Posted 22 February 2013 - 12:02 PM

I was having similar issues with my MKII a little while ago, and I found that some of the mags were simply not smoothed enough where the follower comes through for the slide lock, so a little filing and cleaning fixed the problem. Are the followers(assuming you have multiple mags) being pushed to their full travel by the spring alone? I found that two of my mags were having troubles getting the follower all the way up (gigity), so I made sure the followers had clearance and could easily get to the top. If it's worn beyond that kind of fix then I'm not sure what solution would be best.




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