M&P 40 S&W to 9mm Conversion w/ KKM Barrel

[scattershot]

I converted mine with a stock S&W barrel from Midway, and I used the spring that was already in the pistol. No problems at all.

 

[Bret]

Is there a manufacturer that makes a 40S&W to 9mm conversion barrel for the Shield? I couldn't find one on KKM's or Storm Lake's website.

 

[Frankly45]

I believe the spring is the same in the 40c and 9c. My 40c with KKM 9mm conversion has been flawless in over 200 rds with just the barrel and magazine change using a mix of 90gr practice rounds and 124gr +p.