Didnt even come close to fitting - ZEV Technologies Channel Liner for Glock Slides

I've used many glock firing pin liners....cheap to fancy....and every single one of them gave me zero issues.....EXCEPT this Zev one. It absolutely, positively would not seat all the way down the channel. Started mushrooming and ultimately had to be removed and replaced for a build I was working on. That's all you really need to know.