These are highly refined, modified, and enhanced connectors that facilitate extraordinary trigger action. My proprietary angling and honing process promotes ultra smooth drag free break travel as well as lightning reset speeds that are audible and tactile. A multi-wheel and compound polishing process keep this performance upgrade running and gunning for time immemorial.( a long ass time) The perfect companion for the PURE CARRY & DROP BAR kits. These connectors are standard in the NEXT GENERATION systems.