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I have this Lone Wolf AlphaWolf Glock 42 .380 ACP to 9x18 Makarov Threaded Conversion Barrel with the 1/2x28 thread. I put about 50 rounds through it before I decided I didn’t like the G42 as I really liked the G43. I got rid of the gun but still have this sweet barrel. It does not have the thread protector, I can’t find where I put it. But other then that it is in great shape. I’m only asking $75 shipped to you.