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S&W M&P Shield magazine extension

by mighty_mace Oct 5, 2014
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The piece snaps into place but isn't shaped quite right. The rear, seen in the image on the bed, doesn't match the angle it should mate to. Unless my scaling mm to inch increase of 2540% was bad, it's a bit off in the width as well. I'll add a funny story/warning, though. I had it on a loaded 8-clip in the car and summer temps were enough with the spring pressure to soften and deform it in PLA form. Came off in the console and I discovered cartridges and part everywhere LOL.

Will this work for the .40 instead of the 9mm?

I'm not sure. I've seen a few for sale listed for both 9mm and 40 so my gut tells me yes, it would fit. Let us know if it does for sure!

It shows up super tiny.

That's a MM to Inches issue. You need to convert