HOW DO I BUY A GOCK 30 GEN 4 ONLINE FOR DUMMIES

My 2nd G30SF also experienced precision challenges plus the WORST trigger pull of ANY Glock I have at any time owned, And that i couldn't proper it applying this setup whatever I did and nicely about one,000 rounds of wanting to fix it and “crack in” the gun (which I have NEVER needed to do with any Glock prior to possibly).That's determined by