I just accidentally figured out how to remove the Glock channel liner WITHOUT damaging it. I have a little case neck brush (nylon) that I had bought to clean used brass when I first started reloading. I THINK it's sized for a .223, but I'm not sure. Anyway, I saw some crap in the striker channel of my G29, so I inserted it (all the way), and turned it a bit to scrub it out. When I pulled the brush out, the channel liner came right out. I then just slid it off the brush, and pushed it right back in. You can use the back of the striker (the spacer sleeve) to push the liner back in.
I know many people have always struggled with this piece, so I figured I'd put this out there to help. Most removal methods destroy the thin liner. I also tried it with my G21SF, and again, it came right out, no damage whatsoever. I think it should work with any stiff brush that fits pretty snugly. Here's a picture of the brush:
It's in the center; left is a .40 cal bronze brush, right is a Glock nylon brush (for size reference):
I know many people have always struggled with this piece, so I figured I'd put this out there to help. Most removal methods destroy the thin liner. I also tried it with my G21SF, and again, it came right out, no damage whatsoever. I think it should work with any stiff brush that fits pretty snugly. Here's a picture of the brush:
It's in the center; left is a .40 cal bronze brush, right is a Glock nylon brush (for size reference):
