Does anyone know an easy way to install a new channel liner without messing it up. Don't really want to spend $25 on a specific tool for this if I can file a bolt down and make the same thing via D.I.Y.

For reloading?

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Got Apex?

What's a channel liner?

The only channel liner I'm aware of on an M&P, is the striker channel liner. It's a plastic tube that helps the striker operate smoothly.

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What, me worry?

yes the striker channel liner, sorry I didn't specify that originally. Im having my slide milled for a RMR and cerakoted and it said that the striker channel liner needed to be replaced due to the cerakoting procedure.

The tool you need is less than $2.00. Video isn't high quality but I think it will help. Used this method on several Glock's

If you have a set of flat end punches, find the one that just fits in the striker channel, without liner. Then use the punch to push the liner in by hand (no hammer) until seated. They are easy, I've done dozens...

....and yes, the liner WILL melt during Cerakote baking.

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CERAKOTE Svcs.
Class 01 FFL

Sorry, but where in reloading is a "channel liner" used..?

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CERAKOTE Svcs.
Class 01 FFL

It's not. The question was asked before the OP told us what he was talking about.

Question stands.

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CERAKOTE Svcs.
Class 01 FFL

Yet everyone understood what the OP was asking. Well almost everyone. lol

When will i know that it is seated all the way? I don't want to break it while installing and have to reorder another one.

So I think the answer you may be looking for is this. Glocks use a 5/16" lag bolt or a 5/16" carriage bolt, easily picked up at Lowes or Home Depot. I have replaced several this way. I understand this is an M&P question, not Glock, but the methodology is the same.

You insert the bolt down into the channel and up against the liner. Partially then the bolt so the threads bite into the old channel liner, and pull it out.

Slide the new one in, and push it all the way in with the striker. I have done with several Glocks this way, it works. Just need to verify the size needed for M&P...

I found it on Youtube ....

Also, a bit of knowledge, the MGW Glock sight tool fits M&Ps for the rear sights as well, comes in handy when doing Apex triggers and the only tool available is a Glock sight tool, fits great. If MGW fits, the OEM Glock tool will as well.

I already have the old one out, just didn't want to break the new one when installing. I have a flat head punch that will fit in the channel to put even pressure on the liner to install, will just use hand pressure to install and not hit it with a hammer.

Thanks everyone for the info and helpful hints.

I made a drift from a piece of delrin. I have a small lathe but if someone is handy and careful, a drill press and file might work. I don't like the idea of using something that could possibly damage the slide or striker block pin.

Attached Images

drift.jpg (43.3 KB, 37 views)

I don't think you're supposed to need a hammer but you can also use a wood dowel as a seating tool too. and it should be the same size as a glock which is 5/16".

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Equal opportunity shooter

Another great reason to not cerakote anything I own. lol

Ya, you threw a rock there....

Simple removal solves the issue. You can dislike Cerakote or any other product, but to slam it just cause you want to avoid proper preparation is....well, just not fair!

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CERAKOTE Svcs.
Class 01 FFL

Simple? Not for some or the thread would not exist. I'm well aware about prepping but I'm also aware that over time the stuff starts to peel and makes the gun look like crud.

I treat my guns as tools and don't plan on entering them into any beauty contests.
So, cerakote and others like it are a joke. Just my personal opinion. Okie Dokie

Properly applied, Cerakote will not peel over time.

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Freedom isn't free.

Not my experience but whatever floats your boat. It's your gun not mine.
All I did is post a video of how easy it is to remove the channel liner NOT to argue about cerakote and if I like it or not.
Though I did say I didn't like it.

To each their own!