THE DEFINITIVE GUIDE TO HOW DO I BUY A GOCK 30 GEN 4 ONLINE

I'm unsure when there is Significantly I can do to enhance on it but, when there is I would really like some Thoughts from Individuals of you who have modified their pocket tanks. Aside from night time sights which is an clear up grade through the conventional glock sights. Thanks upfront.I'm essentially wanting to purchase a Gen4 G29/thirty frame