Since Sig-Sauer doesn’t make a Glock 19, I don’t have much use for their firearms. I suppose I would be marginally interested in the SAO 226 if it didn’t cost $1700 and put the slide release in a hideously stupid location. The SIG 556 might be a decent defensive carbine if it came with sights and a folding stock.
However! One thing I do enthusiastically approve of is THIS. A sensible selection of spare parts intended to keep your pistol working when something on it breaks! Without having to overnight it back to the factory!
S&W and Springfield Armory, are you paying attention?
If you bought the correct pistol, you can pick THIS up from Glockmeister and be set.