Do you still have a 25 round M&P 15-22 mag?
If you do, then you'll need to get rid of it and purchase a 10 round one! OR
If you want to keep your 25 round mag and pin it to 10, go for it. Chances are you'll need to do some drilling and cutting of some sort.
Not me, I'm not that handy. Instead I installed a 10 round restrictor from Tacticool.com for $4.25
I put together a video to show you what it looks like in action. Here you go....
www.youtube.com/watch?v=nRYL8OfdV7c

If you do, then you'll need to get rid of it and purchase a 10 round one! OR
If you want to keep your 25 round mag and pin it to 10, go for it. Chances are you'll need to do some drilling and cutting of some sort.
Not me, I'm not that handy. Instead I installed a 10 round restrictor from Tacticool.com for $4.25
I put together a video to show you what it looks like in action. Here you go....
www.youtube.com/watch?v=nRYL8OfdV7c

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