Pardini SP .22 Empty Chamber Indicator / Dry-Fire Plug

This is an "Empty Chamber Indicator" (ECI) and dry fire plug for the Pardini SP .22 target pistols. This is largely copied from the factory plug, with a few modification to make it printable and a bit easier to insert into the chamber. The pin is also a bit longer so it won't fall out as easily. The factory plugs can be expensive ( > $12), and are easy to lose and can break. Once you have things set up, you can crank out a bunch of these for pennies.

In addition to an STL file, I've also provided a STEP file in case you decide you need to tweak the design.