HOW DO I BUY A GOCK 30 GEN 4 ONLINE THINGS TO KNOW BEFORE YOU BUY

My next G30SF also experienced precision difficulties as well as the WORST set off pull of ANY Glock I have at any time owned, and I couldn't right it using this setup no matter what I did and perfectly in excess of one,000 rounds of looking to correct it and “split in” the gun (which I have not had to do with any Glock in advance of either).It