[RCKnight]

I was checking out the slide to rail tolerances and I noticed the front M&P slide sure has a lot of movement. It's tighter than a Glock on the rear, but the front is sloppy. I mean a lot, much more than a Glock. Don't get me wrong, I love this pistol but I would think the tolerances could be much better laterally. Any thoughts? I'm not a gunsmith.

 

[Morphire]

I was checking out the slide to rail tolerances and I noticed the front M&P slide sure has a lot of movement. It's tighter than a Glock on the rear, but the front is sloppy. I mean a lot, much more than a Glock. Don't get me wrong, I love this pistol but I would think the tolerances could be much better laterally. Any thoughts? I'm not a gunsmith.

Does your pistol shoot accurately and reliably?

 

[ShooterMcGavin]

I noticed this with my M&P40 as well, and played with it for a bit. When the slide is forward, try moving the front of the barrel from side to side. I think that's what is more important. I agree that the tolerances could be tighter, but we may be splitting hairs on the movement of the slide.



S&W might have left the tolerance of the slide loose, to allow the slide to shed debris more easily. If the slide were perfectly fitted to the frame, a couple grains of sand could cause a problem with the gun's reliability. That's just my thought.

 

[Jagman]

I've found the M&P to have some of the tightest tolerances available on the market today.

 

[TAZ]

I think we are discussing assembly tolerances vs manufacturing tolerances. My new MP9 is also "loose". Identical to my XD-45, and previous USP's. The barrel lock up at the chamber and at the muzzle is SOLID though.