This is a simple pistol crossbow that shoots pencils or bolts with a diameter of 8.5mm.
All the holes on the model are M4 with the exception of the 2 M3 holes on top of the Long Extension to accommodate the Front Sight.
Please be careful when shooting the crossbow and never shoot at others.
The Thera Band could be replaced with a couple of rubber bands, however this may lower the power of the pistol crossbow.
The rear sight is just super glued to the stabilizer.
List of additional materials
(M4 45mm)x2 Attach Handle to Rail
(M4 30mm)x2 Attach Stabilizer to Rail
(M4 Nut)x1 Attach Trigger to Rail
(M4 20mm)x2 Screw into side of Rail
(M4 50mm)x2 Attach Long Extension to Rail
(M3 15mm Standoff)x2
(M3 10mm)x2 Attach Front Sight to Long Extension