WHERE CAN I BUY A GLOCK ONLINE - AN OVERVIEW

I have a G22 that I bought for any responsibility weapon about 11 yrs in the past. I was about to obtain A further Glock in .357 until eventually I found out I could just do a barrel swap on my G22. Dilemma is which model barrel and where to purchase it? I once in a while CC it but largely just shoot it on the range. Click on to develop...The CR920