Just wondering if the Advantage Arms .22 conversion for the Glock has polygonal rifling? I know there is a lot of talk out there about not shooting lead in a stock Glock barrel due to the build up of lead causing kaboom issues. I personally think it's overblown but stay away from shooting lead in my Glock just in case. I am looking to buy a .22 conversion for my Glock and about half of all the .22 ammo I currently own is lead.


















































