Not so sure there even are 2 dot bbls my friend. Sorry for confusion.
Pretty sure mine does. I’ll double check and post back.
I have one. Test fire date 5/30/13.
Mine has two. Here is a bad pic:

So far…that it’s a 1:10 barrel. If they mean anything beyond that, it’s not been announced by S&W, that I can discern (status quo, since NONE of their parts-alterations ever are…).
At the moment, there seems to be three types/generations of 9mm barrel:
- With a collar or shoulder immediately forward of the barrel hood.
- With no collar/shoulder.
- No collar/shoulder; with one or two dimples on the underside
As for the newer trigger bar, that has also been out for some time and mentioned in existing M&P threads. Here’s another MSW article where it’s mentioned in relation to how it and the newer slide stop interact: http://modernserviceweapons.com/?p=3830
+1 to this, as my 9mm FS has two dimples.
For what it’s worth and just to put the info out there, the one I picked up a little over a month ago from a major big box retailer has the two dimple barrel.
As far as the trigger goes, it is the weirdest trigger I own, all of the creep up to the point of tension is a little crunchy and weird feeling. But the break and reset are pretty spot on.
I notice it way more when I dry fire then when I shoot the gun.
Is the “gritty” feeling people complain about normally in the creep phase of the pull, or once you meet the trigger’s resistance, because mine is smooth from that point on.
Mac,
Yes, all of the gritty feeling is in the initial take up, or as you call it, the creep of the pull. This is easily remedied by installing a very inexpensive Apex USB , or Ultimate Striker Block, which, unlike the stock S&W part, is rounded over instead of square. You can also polish the top most portion of the trigger bar that engages the USB, for an even smoother feel. If you don’t already know, the USB is the little round silver “button” like part that depresses under spring tension when you push on it with your finger (or that depresses when the uppermost portion of the trigger pushes up on it, when the trigger is pulled). It’s located on the underside of the slide. Remove the slide and you will see. These polymer guns are so easy to work on, its ridiculous. Good shooting my friend.
Thank you. I am very mechanically capable (I like to think…
), but I am reluctant to start messing with guns I just bought.
I worked as a metal polisher for years, can this polishing job be done easily by someone who is capable with tools?
Sure, jewellers rouge, or flitz would probably work via a dermal or foredom tool. A fine India stone works well too. Just smooth it up a little. Honestly tho, the Apex USB does 90% of the job. Every M&P owner must install this part. It’s a necessity, along with an Apex RAM…