Broken Disconnector

[Border Dave]

I've been waiting eight months to get my tax stamp approved to make my Scorpion into an SBR.  In that time, I bought and installed the 922r kit for it, which included a new disconnector.  I had only shot about twenty rounds through the Scorpion prior to installing the kit.  Well, I was happy when my tax stamp came back and I could put a stock on it.  I took it to the range and shot about five rounds through it before the trigger just locked up and would not reset. 

I got it home and took it apart and here's what I found:



It's been almost a year since I bought the kit.  Do you think CZ-USA will replace it for me?

[rcbif]

Give em all call. Only way of knowing.

[meb959]

Just put the stock one back in looks identical to the one in the kit that's what I did!

[SouthernScorp]

Supposedly cz usa is good on replacing and warranty, though I've been trying to get 3 broken magazines replaced for weeks now playing phone games and/or email tag  . 

 You can just put the original back in, I don't think anyone has ever been into any serious issues with 922r "now nfa compliance is another story, you don't want to f with that 1". I'm sure before long you'll be stacking on aftermarket parts if you haven't already which will more than make up for 1 disconnector

[Border Dave]

I'll definitely give them a call when they get back from Shot Show on Monday.

[Fate]

Just put the stock one back in looks identical to the one in the kit that's what I did!

No it doesn't. It's thinner and really easy to tell apart.

[SouthernScorp]

still though, put the stock back in and use the gun in the meantime. or just use excuse +1 to buy a new aftermarket do-dad like an hbi trigger or a manticore steel lipped magazine

[SouthernScorp]

frick thanks to Hilary almost getting in I used the "yeah but I need to buy these guns now in case they get banned" excuse and increased my toy collection by +3 . now if you put in a non 922r part you can say you need to buy an aftermarket upgrade part to get back to 922r for legal reasons, or the government made you do it

[mursalot]

Cz custom makes an aftermarket disconnector. I think it was made only to function with their drop in trigger kit though. There were a couple of people whom had issues with trigger reset after installing the czc disconnector without their trigger

You could just order a new one from the cz-usa store and use the warranty to get a replacement as well. That way you'll always have 2 just in case 1 fails. Just be sure to order some extra goodies from the store at the same time to offset the shipping cost.

I'm currently running both cz of disconnectors (cz-oem and cz-usa) in 2 different evo's at the same time without issue. If anything, the usa made disconnector shows less resistance to reset the trigger when released

[Arachnid]

This is hard to explain, as the pictures I took don't have enough contrast to help out - but I just installed the disconnector that came with my recently purchased 922R kit. While its width is thinner at the top, it's actually thicker at the bottom where the pin goes through. Hopefully, this will prevent the break experienced in the OP.

I removed the original by pushing the pin from left to right, towards the trigger spring but only enough to first remove the collar and then a bit more to remove the disconnector. I attempted to install the 922R disconnector in the reverse order, putting in in first, then the collar. However, the collar doesn't fit going in this way due to the thicker bottom section of the 922R disconnector. I had to put the collar in place first, then place the new disconnector on top and push it down.

The reason for this is that on the original, the slot that the collar fits into on the disconnector is machined like a dado (sorry for the woodworking analogy) running from bottom to top. On the new one, the slot for the collar is machined more like half of a mortise (upside down "U") from the bottom and goes only high enough to allow the collar to fit. This allows the whole bottom section of the disconnector to remain thicker and stronger (?) and is why the collar needs to go in first.

For what it's worth, might be interesting to know if the other side of the broken disconnector in the picture above has a slot going all the way or not.

Sorry for the ramble. Probably should have just measured them for comparison! Too late now and I hope I never have to get in there again.

[Arachnid]

This is hard to explain, as the pictures I took don't have enough contrast to help out - but I just installed the disconnector that came with my recently purchased 922R kit. While its width is thinner at the top, it's actually thicker at the bottom where the pin goes through. Hopefully, this will prevent the break experienced in the OP.

I removed the original by pushing the pin from left to right, towards the trigger spring but only enough to first remove the collar and then a bit more to remove the disconnector. I attempted to install the 922R disconnector in the reverse order, putting in in first, then the collar. However, the collar doesn't fit going in this way due to the thicker bottom section of the 922R disconnector. I had to put the collar in place first, then place the new disconnector on top and push it down.

The reason for this is that on the original, the slot that the collar fits into on the disconnector is machined like a dado (sorry for the woodworking analogy) running from bottom to top. On the new one, the slot for the collar is machined more like half of a mortise (upside down "U") from the bottom and goes only high enough to allow the collar to fit. This allows the whole bottom section of the disconnector to remain thicker and stronger (?) and is why the collar needs to go in first.

For what it's worth, might be interesting to know if the other side of the broken disconnector in the picture above has a slot going all the way or not.

Sorry for the ramble. Probably should have just measured them for comparison! Too late now and I hope I never have to get in there again.

Here's the photo with as much contrast I can get. Original on left, 922R on right.








Never mind, after looking closer it's not any thicker, just more consistent thickness around the pin.

[Ohio_OJ]

I am running the CZ Custom disconnector with the factor trigger group and I have not experienced any reset problems. The CZ Custom one is much thicker and I don't expect to have any breakage problems/

YMMV 

Cz custom makes an aftermarket disconnector. I think it was made only to function with their drop in trigger kit though. There were a couple of people whom had issues with trigger reset after installing the czc disconnector without their trigger

You could just order a new one from the cz-usa store and use the warranty to get a replacement as well. That way you'll always have 2 just in case 1 fails. Just be sure to order some extra goodies from the store at the same time to offset the shipping cost.

I'm currently running both cz of disconnectors (cz-oem and cz-usa) in 2 different evo's at the same time without issue. If anything, the usa made disconnector shows less resistance to reset the trigger when released

[Border Dave]

For what it's worth, might be interesting to know if the other side of the broken disconnector in the picture above has a slot going all the way or not.

Here's a photo of the other side of my broken 922r disconnector.  I'm not sure what slot you're referring to, but it does have a recessed area that runs around the hole that the pin goes through.

[mursalot]

i'm pretty sure that's what he was talking about from looking at his pic

[Igrlik]

As you can see, in this point there is edge-notch stress on 922r disconnector... there is flat area on original