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Softer trigger upgrade step-by-step instruction

Soft trigger mod with longer adjuster screws for first and second travel adjusting.

  • Factory trigger: 1st stage ~440g (1lbs), 2nd stage ~1300g (2,8lbs).
  • Soft spring mod: 1st stage ~200g (0,4lbs), 2nd stage ~600g (1,3lbs).

This is instruction for an item sold by me on Etsy

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Soft trigger mod

Soft trigger mod and longer adjuster screws.

Disassembly

Remove grip by unscrewing one bolt.

1 disassembly1 1 disassembly2 1 disassembly3

Factory trigger operation

Let's see how factory trigger works. Those two screws are used to adjust first and second travel distance of the trigger. A bigger screw is used to adjust first travel distance. A smaller screw is used to adjust the second travel distance.

Trigger resting position (hammer catch rests on first travel adjuster screw):

2 factory trigger action 1

Trigger first travel end position (hammer catcher rests on second travel adjuster screw):

2 factory trigger action 2

Trigger second travel end position (shoot):

2 factory trigger action 3

Trigger and hammer catcher dismounting

You need to push out pins holding parts in place.

3 trigger pins removal 1 3 trigger pins removal 2 3 trigger pins removal 3

Trigger and hammer catcher (pin holding hammer catcher is a little longer!):

4 trigger parts 1

Trigger spring

You need to replace the trigger return spring.

5 trigger spring 1 5 trigger spring 2

Now you need to install hammer catcher with new spring. Spring at both ends needs to be in right positioning holes, it is very important!

6 hammer catcher 1 6 hammer catcher 2 6 hammer catcher 3

Trigger disassembly and assembly

You need to replace adjustment bolts in the trigger. After removing second travel distance adjuster screw, some parts will fall out from trigger.

7 trigger disassembly 1 7 trigger disassembly 2

Here is the correct order of those parts. Remember to put safety switch in correct direction!

8 trigger assembly 1 8 trigger assembly 2 8 trigger assembly 3

You need to screw this little screw upside down. You can use pliers.

8 trigger assembly 4 8 trigger assembly 5

At the end, you need to remove the second travel distance adjuster screw.

9 trigger 2nd removal 1

Trigger one stage or two stage?

Now you need to decide which type of trigger you want to use. I think one stage is much better, because the first travel adjusting screw is "locked" by a spring. After setting trigger one, it stays in this setting. The second travel adjuster screw is without any locking mechanism (you can only add thread locking fluid). Without locking, this screw will change trigger behavior. This screw also likes to fall out.

One stage trigger (you should make screw to stick out about 2,5mm):

10 trigger 1 travel

Two stage trigger:

10 trigger 2 travel

One stage trigger operation

Rest position:

11 trigger 1 travel operation 1

After minimal trigger pull, the hammer is free and air rifle shoots. Travel distance depends on length of adjuster screw.

11 trigger 1 travel operation 2

Two stage trigger operation

Rest position:

12 trigger 2 travel operation 1

First travel end position:

12 trigger 2 travel operation 2

Second travel end position (shoot):

12 trigger 2 travel operation 3

Assembly

Final step. You just need to mount back air rifle stock.

13 assembly 1 13 assembly 2