Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3328856.

this is a mod of the gb22. the barrel and frame are 1 piece. the slide is in 2 pieces that go together via a dovetail. the slide is moved forward via a rubber band attached at the end of the slide and connects at the trigger guard.

these files are in inches! and the gun is small, 4 in. is long, appx.