Revised review - Alpha Shooting Sports ALPHA Marksman V4 Slide for Glock 17

I finally tried 2 more barrels. They both work and cycle great with this slide and the suppressor. It turns out it's not the slide, but the Blacklist barrel. For anyone that wants to know, the barrels I can confirm work fine are the Right to Bear threaded and non-threaded, and a Capitol Armory threaded. The Blacklist barrel is about 1/8" larger than all the rest, and basically the extra length causes it to bind. It's clearly marked a G19, but almost feels like a G17 barrel.

Regardless, slide functions great. It was the barrel all along...