Video from Haley Strategic Partners on their Th1rte3n Sights for pistols... "The HSP TH1RTE3N Glock Handgun sights were designed based on the science of how the human eye acquires sight alignment and sight picture under precision or stress sight picture situations. Handgun sights are installed on a handgun to add more precision; this is what the HSP13 were designed around.

New release from Haley Strategic Partners designed for better target acquisition with Glock handguns... "The HSP TH1RTE3N Glock Handgun sights were designed based around the science of how the human eye acquires sight alignment and sight picture under precision or stress sight picture situations.  Handgun sights are installed on a handgun to add more precision; this is what the HSP13 were designed around.