Quote Originally Posted by FortTom View Post
O.K....funny guys... Seriously all of these years, and I've never heard of and never have seen one of those until today.
The concept came from old timey hammer guns. You'd press your thumb against the hammer when reholstering in case anything snagged the trigger. Literally same concept for a Glock except 100% applicable to AIWB.

http://www.vdmsr.com/2018/03/striker...gadget_34.html