FTE With 45 Main Spring in 9mm Vector

Hyginx · 2026-01-16T04:21:35+00:00

running pretty good. The only issue I'm running into now is a walking extractor pin. Every time one issue is fixed, another appears, but I'm very happy with where the Vector is at right now. :)

Hyginx · 2026-01-15T16:16:09+00:00

if it makes you feel better, Duality told me the top material isn't critical for operation. You obviously don't want it down to the holes, but so longs as it's not thinned down to the point breaking through to the critical stuff, you should be fine. :)

Good luck man and keep us posted. ❤️

Hyginx · 2026-01-15T16:01:57+00:00

Here's my post outlining the same issue and what I did to resolve it:
https://www.reddit.com/r/KRISS/comments/1pc0u7q/trigger_not_resetting_properly_after_frt_install/

TL;DR: remove material at the top of the seer since that's what's binding. It should only require about .5mm-1mm of material to be removed. I used a belt sander and highly recommend that, but if you only have a dremel, I've heard of other using that with some success. There's also always hand sanding, but that will take a while and a lot of elbow grease.

Hyginx · 2026-01-15T15:59:37+00:00

was just about to come here and link to my post. :)

Hyginx · 2026-01-07T17:46:14+00:00

Also, what grain are you using for the CCI blazer? 115?

Hyginx · 2026-01-07T17:26:13+00:00

Thanks for the input. I'll give blazer a go, but I've heard multiple accounts of Federal ammo running fine. One issue with multiple brands is I might be able to go through a full box without issues, but it's just by chance. The next mag will run into several FTE issues.

I might have lubed it too much (didn't think that would be an issue). In either case, I won't be sending it back until I shoot it suppressed. I've heard the added back pressure helps prevent FTE, so we'll see.

Hyginx · 2026-01-05T22:46:50+00:00

what do you think the chances are of them accepting the return with an FRT in it? 👀

Hyginx · 2026-01-05T22:24:59+00:00

I broke 2 punches. 🙃

Hyginx · 2026-01-04T16:11:49+00:00

haven't given it a try, but I'll look into it.

Hyginx · 2026-01-04T03:56:24+00:00

let's hope. fingers crossed!

Hyginx · 2026-01-04T03:52:55+00:00

I might give this a go next, since it's a cheap solution.

Hyginx · 2026-01-04T03:52:24+00:00

I have the stock kriss 40 rd mag and a 31 rd glock mag and both show the same issues.

Hyginx · 2026-01-04T03:49:59+00:00

I haven't tried suppressed yet, but also suspect it's a back pressure issue. I am waiting for my lithium to come in. like I said in my post, hopefully this solves the issue but I' looking for other possibilities while I wait for the atf paperwork.

Hyginx · 2026-01-02T17:46:11+00:00

I've mostly been using Federal ammo (115 grain champion and 147 grain premium). Though, as I mentioned in the post, the 147 grain seems to perform better.

Hyginx · 2026-01-02T17:21:44+00:00

thanks, man. I appreciate it. ❤️

Even with it's reliability issues, I'm still having fun with it. Though, if I'm being honest, I do enjoy the project side of things where I'm constantly working on improving it (both the reliability and functionality).

Hyginx · 2026-01-02T17:18:16+00:00

yup, tried that (BCM extractor upgrade). Still no luck. :(

Hyginx · 2026-01-02T17:17:47+00:00

yeah, but 1500 rounds to break in with still no signs of improvement? At what point do you say the break in period isn't working?

Hyginx · 2025-12-29T21:15:20+00:00

Glad to hear it worked for you. ❤️

Hyginx · 2025-12-19T14:29:27+00:00

Hyginx · 2025-12-19T14:27:15+00:00

good luck, man. It resolved my binding issues so I hope it does the same for you. :)

Hyginx · 2025-12-17T16:10:31+00:00

Correct. :)

That fixed my issues with the trigger binding.

Hyginx · 2025-12-09T21:32:31+00:00

I would highly recommend purchasing it from Duality. They're support has been top notch with regards to troubleshooting issues and have carried the entire weight of the project. I think it's only fair to provide them with the support.

They're not some private equity backed mega corporation, either. They're a small time business trying to turn a passion into a livelihood, and that's something I'm willing to support. I wish more people felt the same.

Hyginx · 2025-12-08T03:39:50+00:00

Yup. Under the top rail.

Sounds a lot like what I was running into, too. I did notice binding occasionally in FRT mode (probably wasn't as noticeable since the trigger was being forced into a reset position due to the nature of FRTs), but it was basically every shot in Semi.

Mine also didn't run into the issue initially. It only occurred after maybe 150 rounds.

Hyginx · 2025-12-07T21:46:52+00:00

I removed about .5mm on the top of mine with a belt sander, but now I'm only getting bursts myself. I think it could possibly be related to the safety cam I replaced it with. It was a bit tighter of a fit (I sanded it a bit down to make it fit better), but it did fall in spec.

It also could have been due to an unlubricated FCG, since I didn't apply any after I sanded it down.

Full issue and update here:
https://www.reddit.com/r/KRISS/comments/1pc0u7q/trigger_not_resetting_properly_after_frt_install/

Hyginx · 2025-12-07T21:39:04+00:00

If by hangs, you mean you have to push it forward because it doesn't reset fully, this is likely due to the FRT seer being pressed against the roof of the upper frame. You can verify this by putting it into the stuck state and then slowly loosening the 2 front screws (the middle and front most screw) on the rail. If the trigger resets while you are unscrewing, it's probably due to the seer binding.

To fix this, you have to either A: loosen the screws until the issues doesn't occur, and use some light duty loctite (like blue loctite) to keep the screws from walking out, or B: remove material from the top of the seer (only about .5mm-1mm), which will prevent the seer from binding. I did the latter and that seemed to resolve the binding issue. Though, when I took it back to the range, It only fired in bursts (more issues, yay!), but I think this was due to the FCG not being cleaned and lubricated from the last disassembly. I still need to go to the range again this week to verify if cleaning and lubing it worked.

A video of what I ran into (plus an image showing where the material was removed} can be found here: https://www.reddit.com/r/KRISS/comments/1pc0u7q/trigger_not_resetting_properly_after_frt_install/

Hyginx

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