3D-printed version of the stock part with minor changes.
1) The hole for part #47 is wider than normal- you won't need to hammer this in anymore due to some of the looseness.
2) The pocket for the piston is slightly deeper.
3) Not as many "mass reducing" features.
This was tested before it was photographed, hence the black marks- it won't be like that when you order it. Tested and fit using Strong & Flexible Polished (Yellow).