Originally Posted By: bigtommynot sure how much demand there is. I did some looking into the aftermarket barrels and found that the velocity was better with the glock barrel and accuracy was the same with the three barrels tested. The only reason I would go with AM barrel is if I want to shoot lead which I do not
I think the velocity claim needs some validation. I certainly couldn't say this, and I own both a Glock factory barrel and a KKM Precision barrel. And there is at least one other reason to shoot an after market barrel...Chamber support. Stout 10mm loads really need full chamber support. If one wants to shoot anemic factory ammo, then yes, stick with the Glock barrel. If one wants to shoot ammo that is loaded to the full potential of the 10mm, then one will want a fully supported chamber, and an aftermarket barrel.
I kept my Glock barrel, and do use it for practice, and for SD carry, with ammo that is safe in partially supported chambers. But I get a big grin when I drop in the KKM, and launch 200 gr. slugs at +1300 fps...Can't do that with the factory Glock barrel and not be flirting with a KABOOOM.
Squeeze