
- Note -

Cut the wooden timbers with a saw, as shown in the diagram above

Cut the wood plates and plastic plates with a saw, as shown in the diagram above

1.
Drill two holes (2-3 mm in diameter) in P1 and P2

2.
Glue P1, P8, P5, P6, and the trigger bar
(This unit is called the trigger unit)
3.
Glue P2 to the assembly
4.
Insert the ratchet into the ratchet box, and insert two wooden pins (2-3 mm in diameter) into each hole

5.
Secure the left frame (L) to the barrel with screws
(pre-drill is necessary)
6.
Glue P7 and P9 to the left frame, maintaining 15 mm spacing between them and the barrel
7.
(1) Place the trigger unit on the left frame, making contact with P7
Glue P10 and P11 to the left frame
(Do not move the trigger unit!)
(2) Glue P3 to the left frame, keeping a spacing of just 12 mm from the trigger
(Do not move the trigger unit!)
(3) Glue P4 to the left frame.
(4) Temporarily remove the trigger unit from the assembly
8.
Glue the left grip panel to P3 and P4
Glue P12 to the inside of the left grip
9.
(1) Place the trigger unit back on the assembly
(2) Keep the trigger unit in contact with P7 while adjusting the position of the ratchet and the slide bolt
(3) A 2 mm clearance is required between the ratchet and the vertical face of the first notch of the slide bolt