Originally posted by P220 Smudge:
Easy. Get a G19 barrel first (and a G17 barrel while you're at it, because why not).
Glock says it won't fit, but I can tell you it does. I already had it for my others, and since you have a bunch of Glocks it'll fit, this is a good one to have anyway. I know, Bear Creek Arsenal is supposed to be shit, but I've put a couple thousand rounds through this one and it's been great. The finish isn't amazing, but I truly do not care. It can't be beat for the price. I bought a Ballistic Advantage G17 threaded barrel and could've bought one of these, a G17, and a G22 9mm conversion barrel for what I paid for the BA, which has a tight chamber and I've had to hammer open with stuck brass in the chamber three or four times now.
Proof it fits:
The P226 and P228, you can buy threaded barrels from Sig, but they're M13x1 (IIRC) and reverse thread, so you'll have to buy another piston to fit. Or. Buy the Silencerco barrel that's 1/2x28 threaded so you don't have to pull apart your can to move it around, which is my recommendation. I know they make a 226 barrel because I have one and it has been great. I don't know offhand if they make a 228 barrel.
The G43X, I don't have a recommend yet. I will be doing that as well probably soon. I wish Bear Creek made one of those, I really don't want to spend over $100 to suppress mine, but hey....