The PPS and universal ejector STLs are nominally 3mm/0.119" thick and the Glock ejector STL is 3.175mm/0.125". The Glock ejector I recieved from Zip is 3mm so that is likely a safe bet for all of them. If using SCS, I would go with their A36/1008 Mild Steel with 3mm/0.119" thickness. They do
have 4130 Chromoly with a 3.2/0.125" option if you are tempted to get a thicker Glock ejector, but I don't see why that'd be necessary. The Glock lower appears to leave 3.3mm of clearance so it should fit although rather snugly.
I have included the STEPs that were generated in the process of creating DXFs from the STLs that are included with the ARK1.0 DLC release. Do with them what you please.
LBRY Tags: 3d printing; 3d2a; fosscad; dxf