I printed it in a mix of PLA and PETG. The green parts are in PETG. PETG gives the arms a bit more flex. The model was easy to print and very well thought out. Thanks to the ingenius artist. The only thing I dont understand is the trigger. The bowstring can only be locked when the complete mechanism is locked. After unlocking the bowstring gets released. I cant even use the trigger to shoot. I have to block the trigger behind the trigger. But never the less a very nice model.