NOT KNOWN FACTS ABOUT WHERE CAN I BUY A GLOCK ONLINE

I have a G22 that I purchased for your responsibility weapon about 11 yrs ago. I was going to get An additional Glock in .357 till I found out I could just do a barrel swap on my G22. Concern is which brand name barrel and where to purchase it? I from time to time CC it but largely just shoot it at the range. Click on to develop...Qty: This product