Diamond-like Carbon (DLC) is the hardest coating we can apply to a firearm. It only comes in a graphite color but appears black with a light application of oil. The surface is wear and heat resistant. DLC has a low friction coefficient so it can have the same effect on internals as NP3+ and result in slightly lower trigger pulls.
What can DLC be applied to?
Although some places do offer DLC for aluminum, we only coat steel or stainless-steel parts. DLC is suitable for frame, slide, barrel, controls, and internals.
How do I care for DLC?
DLC is not impervious to rust so we do recommend a light coat of oil periodically.