WHAT DOES HOW DO I BUY A GOCK 30 GEN 4 ONLINE MEAN?

My 2nd G30SF also experienced precision troubles along with the WORST set off pull of ANY Glock I've ever owned, And that i couldn't proper it making use of this set up regardless of what I did and nicely around 1,000 rounds of seeking to resolve it and “crack in” the gun (which I have not had to do with any Glock right before possibly).My gues