Springs Main Spring: length:73,5mm; outer diameter:14mm; wire:1,5mm Trigger Spring: length:30mm; outer diameter:10mm; wire:0,8mm Catch Spring. length:16mm; outer diameter:8mm; wire:0,63mm Pipe lengh 95mm; outer diameter 26mm; inner diameter 19,5mm Screws Piston Screw: length:16mm; diameter: 3mm Trigger Screw: length:8mm; diameter: 2,5mm Back Screw: length:6mm; diameter: 2,5mm 2x Rubber ring: diameter: 25mm sealing ring: outer diameter 20mm; inner diameter 10mm Some oil for the sealing ring All non- non- printable parts in one pack: https://www.ebay.de/itm/114712042527 Here you can find the youtube video on how to assemble the gun: https://www.youtube.com/watch?v=jIdk0Nr9jQ0&feature=emb_imp_woyt Printer: Anycubic Mega X Filament: PLA Barrel, Back, Slice, Handle: Resolutuin 1,5 - 3 mm Iinfill 50% Support overhang angle 60° Catch, Front, Piston, Piston Head 1/2, Trigger, Trigger Support: Resolution 1,5 - 3mm Infill 100% Support overhang angle 60° Printing time: With my Anycubic Mega X the printing time is close to 21 hours If you place the 3D modells correctly, there istn`t that much support to remove. I recommend using a cutter nive and a pliers.