OP slide, slide stop situation, if you would be so kind as to help.....

[ABPOS]

I think my slide stop is wrong. According to this pic:



The slide stop I have looks like the older one, that shows having a pin and the spring in there differently than how it was in mine. I have always wondered about this slide stop, because it doesn't really move freely. It either wants to stay up or down, so I always just avoided using it and hoped it would stay in the up position. But now looking at this picture in Canfield's book, I think I have the wrong one in there. I bought it that way FWIW. What do you guys think?





And would that negatively affect function? It doesn't seem like there is really any where on the receiver from it dragging, but I have always scratched my head about this thing.

Also, what kind of op slide do I have? I read in his book there are 6 different types, and I can't really tell, from his description, what mine is. It seems to have some older style characteristics, like the part that is on an angle over the top of the receiver, but where it glides underneath the barrel is flat. So that seems like it makes it a later style. AND, I don't see it marked anywhere. Is that bad?








It doesn't look like it's been dragging, but who knows?

I would think this could be maybe a part of the problem with my function, but I don't know. But I think it's the wrong one. My carbine has no hole for a "pin stop" like that drawing shows, and the slide stop definitely looks like the type that needs it.

So, if I do need a new one, where is a good place to get one?

I know I need a new recoil spring, possibly a mag catch spring, and now possibly this slide stop. Brownells has a Wolff spring tune up kit, but I doubt they have any of these slides stops.

Anyways..... Thanks for your help!!!!

Information

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[USGI]

Your slide stop and spring look correct to me. It's not the earliest design with the pin, but it is an earlier type stop. The stop is supposed to stay up until you push it down - that keeps it from dragging on the receiver. When the slide is locked back and you then pull back on it, the ramp on the receiver cut forces the stop back up and allows the slide to go forward. Your slide looks like a Type 3 with the narrower arm joint. There could be an identifying mark in the bottom of the slide box - could have some carbon deposits hiding it. Some of the marks are very small and hard to see. - Bob

[ABPOS]

Your explanation does make sense. But it was not shown as such in that drawing. It clearly shows that stop type having a pin. Would the newer style slide stop work? Should I try one?

---------- Post added at 02:10 PM ---------- Previous post was at 02:06 PM ----------

I see it now!!!! It's marked SG (op slide). Thank you USGI!!!!

[USGI]

The new one is supposed to hold it's position a little bit better. Also, the new one takes a slightly longer spring to make it work correctly. I've got both types on carbines and can't really tell any difference. I woudn't worry about upgrading it. - Bob

[ABPOS]

I appreciate that. According to the drawings, I wasn't sure if the new stop would work any better or not. It appears they have a more "bulged" profile, and I thought that might help it stay up better. But like I said, if it was dragging a bunch, you'd think you'd see a line in finish on the receiver. And there really isn't one. For the most part. So you're probably right. It looks like a newer style one might fit though, and it may be worth a try, just to scratch an itch. That is, if I could find one that didn't cost 7 million dollars.

[jimb16]

The pin was present only in the very early slides. You slide is far too late to have the pin. In fact the slide stop you have is correct for the type slide you have. Why change something that is correct?

[CrossedCannons]

Why change something that is correct?

Depot Maintenance

[ABPOS]

Well, I guess I wasn't convinced it was correct. Because of that drawing. But since you guys are all saying it is........ I suppose I could leave it. I am trying to get mine running well. But I know my recoil spring might be the culprit. So..... I was just trying to make sure I have all I need when I go to do an order for parts somewhere.

[DaveHH]

is just there to help the spring locate and secure the stop in the up position. You push down and it overrides the spring pressure and locks the slide in the slot. When it is pulled to the rear there is a ramp (as mentioned earlier) that pushes the stop up and the spring pressure holds it up until you decide to again lock it. It won't fall out or come out because even when the slide is dismounted, the spring holds it. It is a wonderful engineering solution that eliminated a part and works well. The entire slide stop/ramp design is just a beautiful piece of design work.