Summary

A simple DIY bore guide, heavily inspired by Pro-Shot's.

Print 1 front, 1 bolt-tube, 1 guide. There are 2 styles of each to choose from.

If you're going to use it in a lefty rifle, use the 'lefty.stl' file.

Required items

• 12 mm OD Alu tube
• M6 threaded rod or screw
• Glue
• O-ring

Assembly

1. Use a 12 mm OD alu tube in the length of your choice.
2. Add an O-ring to the front, to keep the juices in the chamber. Size is not important, just use any that fits.
3. Glue the front to the tube.
4. Add the 'bolt tube' now - It has to be before you glue the last part
5. Glue the end to the tube.
6. Add the screw to the bolt tube.

Version 1.1

Bolt tube shrunk to 17.5 mm, like other commercial products.
'Bolt handle' shrunk to 8 mm wide, to accommodate slimmer bolt handle slit in action.

M6 thread for more durable threads.

Version 1.2

Extra front, bolt and guide.
Rhombus shaped bolt handle to maximize wall thickness, while being able to turn the corner.