Hey everyone,

I'm fairly new to shooting sports. I recently bought a sig p226 tacops chambered in 9mm. My wife and I took it to the range and put 150 rounds through the pistol. It ran great, no failures whatsoever. However, my wife did have some trouble gripping the pistol and she didn't like the weight. So i thought I might get her an M&P range kit. I just had a question about the m&P 40.

1)Can you put SW factory 9mm barrel to convert it? or is there only aftermarket barrels?
2)does conversion kits have any disadvantages (ie. more wear on the slide or frame, fittment is not 100%, etc.)
3)how much is the factory barrel VS aftermarket(any recommendations on which ones)?

I just thought since we already have a 9mm, having a different caliber wouldn't be such a bad idea.

thanks.