Introducing the Songbird PM4 Center-fire (Version 1.1). A modified version of the Songbird PM422 (by James Patrick) that is redesigned for all center-fire handgun ammunition.
A metal pipe, or metal barrel, must be installed into the 3D printed barrel before use. Please read the README/manual PDF (included with the files) for specific instructions before printing.
What's new in version 1.1? Small updates and added in-depth documentation that takes you step-by-step through your build.