Good but pricey safety selector - Fortis Manufacturing Super Lean Sport/SLS FIFTY Safety Selector

I own two SS and one SLS in TiN body with black arms. Great selectors when assembled properly with white lithium grease on detent and spring(not included). The body/shaft is coated in titanium nitride PVD (physical vapor deposition) not brass but finish is not perfect in the lands/facets that contact the fire control group. Like all safety selectors I've install ranging from $10-$80 they are very firm through the throws but after cycling back and forth 20 or so times with quality lube on the tip of the detent they operate smoothly afterwards. I have had them operating in DPMS, AERO M4E1 & X15, Anderson, American Resistance AR9, and various other lowers with out problems. They work with moat FCGs I've tried except Fostech Echo 2 binaries. Most are paired with Timney Calvin Elite triggers with matching shoe colors.