Barrel Finish Guide: Nitride vs TiN vs Oil Slick vs DLC — What's the Difference?
7th Apr 2026
When you're shopping for a barrel or an assembled slide for Glock 19, Glock 17, or any other model, the barrel finish is one of the first choices you'll make. But what's the actual difference between black nitride, titanium nitride, oil slick PVD, and DLC? Is one more durable than another? Does the finish affect performance?
Here's a straightforward breakdown of the most common
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