KWA Kriss Vector issue

[Guest]

Your semi sear looks really worn, but you have to hold the auto sear up or the hammer won’t reset properly without the full lower in place. You must let it go through a proper cycle or it won’t reset.

You did sand the sear nub, not the sear face?

Have you checked the condition of the sear cup springs? If they are damaged, the sears won’t reset.

The three cup springs are two different lengths, are they in the right cups? Check the parts diagram to get them in the right place, off the top of my head (I think) , the fulll auto spring is shorter, but check it first.

Have you checked the wear on the tip of the primary sear? (The trigger bar)

Do you have a standard trigger installed?

Is the recoil buffer standard, rod not bent, spring pushing sufficiently to raise the buffer fully?

Bolt returning fully into the hop?

 

[Schultz]

I think i was lacking some information on mine latest vid, sorry. I assembled the Vector and took some shots. When the trigger was not working i disassembled the Vector, started the vid, and then you see mee pushing the trigger bar. You see that when i push the trigger bar it resets properly. 

You did sand the sear nub, not the sear face?

I sanded around the nub, not the nub itself.

Have you checked the condition of the sear cup springs? If they are damaged, the sears won’t reset.

The three cup springs are two different lengths, are they in the right cups? Check the parts diagram to get them in the right place, off the top of my head (I think) , the fulll auto spring is shorter, but check it first.

Yes i did and the springs are in the right place. The full auto spring is indeed the short one.

Have you checked the wear on the tip of the primary sear? (The trigger bar)

Yes, look good enough

Do you have a standard trigger installed?
Yes, V1

Is the recoil buffer standard, rod not bent, spring pushing sufficiently to raise the buffer fully?

Think so

Bolt returning fully into the hop?
Yes

 

[Guest]

This is how the semi sear should look once you’ve done sanding, though maybe less removed, you have to go very carefully

View attachment 48974

Part of the nub has been sanded/filed off

View attachment 48973

 

[Schultz]

Oke, will do

 

[Schultz]

Didn’t work. Still think it has someting to do with the triggerbar. 

 

[Guest]

Didn’t work. Still think it has someting to do with the triggerbar. 

Click to shrink...

How much did you take off?

 

[Schultz]

A little bit. What would this accomplish, looks like it is not touching anything on that spot?

 

[Guest]

A little bit. What would this accomplish, looks like it is not touching anything on that spot?

Click to shrink...

Trust me, this is the fix for a worn semi or burst sear. @Dan1712 and I have done this on LOTS of KWA Vectors.

Take the trigger group assembly out of the gun, manually cycle it, study it until you can see what the various parts do.

If you think the bottom of the nub doesn’t do anything, you don’t understand how the trigger group works.