Sorry for the off topic but I find it amazing how easily can you buy barrels in the US - simply awesome! I need to get a new own/carry permit if I want to buy a barrel and given how complicated it is (we have a "may issue" system, not "shall issue") it would make more sense to buy a whole gun. That's a great barrel and would fit my G45 fine. Cheers!
I haven’t attended the Armorer’s course for the Gen 5. Is there an actual difference in the barrel/locking block in the 5s in 9mm?