Good news for CZ shooters in Production and Carry Optics division. USPSA released their minutes from the feb 9, 2018 BoD meeting, along with revised Appendix D4 (Production) and Appendix D7 (Carry Optics).
The most significant change:
App D4 (Prod) 21.6 Exchange of minor External components: Sights, firing pins, firing pin retainers, pins, extractors, magazine releases, slide stops, thumb safeties, triggers, hammers, bushings, and ejectors MAY be replaced with OFM or aftermarket parts.
App D7 (CO) 21.6 Exchange of minor EXTERNAL components: Sights, firing pins, firing pin retainers, pins, extractors, magazine releases, slide stops, thumb safeties, triggers, hammers, bushings, and ejectors MAY be replaced with OFM or aftermarket parts. ?Barrels are considered ?external parts? and are subject to specific restrictions in 21.3.
IMO, back in April 2017 when NROI issued a ruling allowing use of aftermarket hammers provided they functioned identically to the OFM hammer, this opened the door so it was only a matter of time before it was extended to other minor external parts such as trigger shoes, mag releases, thumb safeties, striker plates, slide stops, etc...
I read this to mean that P10C guys can replace their trigger shoe with one from HBi or CGW. Ditto on extended mag releases from CZC.
However bad news for S2 shooters, the BoD did not increase the max weight for Carry Optics. Its still 45 oz including the optic.
Oh, and CO and PCC are full fledged divisions now, no longer provisional.