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

I set a Tarran Tactical kit right into a gen three g23 and It really is now Tremendous lite but I even now could not hit something with it. My Good friend could shoot it really well but I struggled. Lastly I modified the inventory sights into a Dawson Precision Fixed Competition Sight Established and now I do pretty good with it.Is one a bit additi