WHERE CAN I BUY A GLOCK 30 ONLINE OPTIONS

I put a Tarran Tactical kit right into a gen 3 g23 and it's now Tremendous lite but I continue to couldn't hit something with it. My Pal could shoot it really well but I struggled. Finally I modified the stock sights to some Dawson Precision Fixed Competitiveness Sight Set and now I do very good with it.I would not touch upon the 45 ACP vs the 9mm