jtacp

Man, read through this thread, I think it would convince you not to touch Zev. FYI, remember that pro-shooter that shot for ZEV that chimed in? He's legit, Max is an absolute monster. However, since last posting, he has left ZEV and the OZ9's behind. He now shoots a pair of Shadow 2's. I forget why he left specifically, but he did cite the reliability issues to be one of the motivating factors for changing guns.

Sounds like a problem with the chamber or slide to barrel lockup dimensions. Something's too tight, so there's more rearwards force needed to unlock the casing from the chamber / slide from the barrel. As a result, the slide and barrel stays locked together for longer, and some of the energy that's normally spent on pushing the slide (only) rearwards, is used to smack the slide/barrel against the locking lug hard. As a result, the weaker ammo doesn't create enough rearwards force to reliably cycle, since less energy is leftover to eject the casing. Which is the cause of failure to ejects. A temporary fix would be to use a softer recoil spring. 13 pound might work better, maybe grab a sampler pack with different weight springs and test them out. Of course, lighter recoil springs might have their own issues, so, temporary fix. The duty ammo does create enough rearwards energy to cycle the slide reliably. However, that's even more force being applied to that barrel lug. I'm guessing that if you only use high pressure ammo, that lug is absolutely going to break sooner rather than later. In the same way the others in this thread had their lugs break. TL:DR Swap to a lighter spring for now, swap to non zev slide/barrel in the future. Good luck.

Trust me, the occasional unintentional triple tap is not nearly it's biggest problem. Random failures to eject and parts breakages are far worse on the clock. Millbrook was the distributor until they couldn't handle it anymore. He was handing out replacement barrels, triggers and slide stops left and right. Frankly, I don't believe its the trigger/connector, since the triple tap also happened on a full Apex trigger kit. The OZ9 might be an OK safe queen or occasional plinker, competition gun it is not.

Canada my dude, all Zev's willing to do for it was having a new trigger and connector sent. The comfortable grip is the only good quality to the zev. I honestly can't think of any other advantages to owning one of these things compared to a Glock. Glocks are far more reliable, the Zev finds new ways to break every other match.

OZ9 fired 2 rounds from one trigger squeeze. Doesn't happen consistently, but I also don't want it to happen at all. It's in the recall zone, but all the ZEV people want to do is replace the trigger and connector. Apex trigger parts was used, so it's probably the slide or frame that caused it. Anyone have a fix for this?

In for a OZ9 slide release failure. Thing broke during a match, good going Zev. The good news is that the extraction issues have decreased with the use of a Glock OEM extractor.

Just keep in mind that the Canik's not IPSC legal, only USPSA legal. Great value though, and a good trigger. The bore axis is very very high though, so quite a bit harder to shoot fast compared to a M&P. It's possible to shoot fast, but just harder.

See if the original barrel runs well. Maybe the Apex Barrel has been fitted too tightly, so lots of the rearward energy's being used up unlocking the slide and barrel, so there's not enough force left to kick the casing out occasionally. Try adjusting the fitment on the Apex barrel. Non ported factory barrels are also an option to pick up to make it legal. Spicer ammo's also an option

Been shooting my CORE 1.0 for about a year now as my competition gun, with a original deltapoint. Gun's reliable, and the Apex trigger is very very nice. The only reasons I would choose a different gun is with the magwell and mag release being small (compared to CZ's). As well, the beavertail on the gen 1's make it hard for me to get as high as I'd like on the gun. I can get a higher grip on a Glock. But still, the bore axis is still much better than a 320. Other than that, it's light so I can't tap it as fast as a Shadow.

I've been competing with a gen 1 CORE for a while now with the Apex kit for about a year or so now. Works great, get the original deltapoint, not the pro if you can. Co-witnesses perfectly with the high iron sights. Other than that, just remember to adjust the candy can on the trigger bar, makes a big difference for the reset and over-travel.

In for another OZ9 barrel lug breaking clean off. Tons of extraction issues too, going to go get a new extractor. This OZ9 has been the least reliable gun I've seen in a long time.