The best ported slides out there - Arc Division Reactor Pistol Slide Kit

Ordered a GEN3 17 kit for my OZ9 fullsize frame, all together the thing shoots incredibly flat. It is, objectively speaking, the best-looking integrally ported barrel setup for GLOCKS on the market right now, and the customer service from ARC is spectacular and out of this world. If you have any troubles with your item, Patch is always ready to help and make sure that you are left with a wonderful experience.

Now onto the small quirks and features:

The optic cut could be improved since if you run an RMR sealing plate (like you should), the front recoil lugs on the optic cut will only go into the optic just a very tiny bit, not a huge issue, you just have to re-zero the optic every time you take it off and put it back on.

It also seems like these slides are cut on the tighter side of the tolerance since I had a metal channel liner get stuck on 2 different slides (where they were supposed to just fall right out after taking out the striker assembly, removed by sticking a bronze brush into the channel liner and pulled right out though), so just use a plastic channel liner with these (like you should), and it runs flawlessly with those.

And because of the top slide cut positioning, some front iron sights will overhang into the slide cut area, so be careful when choosing a sight set if you care about that stuff.

A good thing to remember about these ported barrels is that they do not like 115 grains, and it WILL shoot copper/lead fragments back at you if you feed them the wrong ammo (also had 1 stove pipe and 2 Failure to Feed with the 115s in the 100 rounds, and the 115 boxes does say do not use with ported barrels). So far the 147s (both federal hst hollow and federal ae fmj) have been the most consistent in not shooting me back with fragments and hitting their mark down range, so use higher grains (no experience yet with 124s, so you just have gotta find out on your own).

Despite these small issues, if you can even call them that, what you get in performance and experience (especially with ARC's and Patch's customer service) is worth everything that this item commends. Be prepared to have your world rocked by how flat this thing shoots!