With this 3d printed stock tube you can use M4 stocks for the Silverback TAC 41 L / LS
The original mounting system is used
8 positions, diameter 29 mm.
Material:
PLA
The stick comes unprocessed.
Important PLA can be deformed by excessive heat, so do not leave it in the sun.
Picture 1. shows the scope of delivery
The 2nd picture shows how it can look on your TAC-41.