Greetings,
I am hoping someone may be able to help.
I have been looking unsuccesfully on S&W site for handgun barrel twist rates.
Also the number of grooves, the type of rifling and the rifling method used, ie Ballard cut or something else and are the barrels hammer forged, buttoned etc.
I'm looking for this info for the 5" barrel M&P9 and M&P9L.
Thank you for any assistance
