"D" spring Beretta mod - How drastic of a change is it?

[reckoner]

I just put a Wolff 16# hammer spring (which is supposed to be equivalent to the Beretta D spring) in my 8040. The Internet led me to believe that this would give a night-and-day improvement in the DA trigger pull, but honestly I can't even tell the difference. Maybe a marginal improvement in the SA pull.

What gives? Is the difference more subtle than I believed? Does the mod not work as well on the 8000 series as it does on the 92/96 series?

[zfields]

Not trying to be a jerk when I ask this, but how long have you been shooting? A lot of times, people don't notice much of a change when they do "minor" trigger work compared to someone who has been shooting a particular pistol for a while

[reckoner]

Not trying to be a jerk when I ask this, but how long have you been shooting? A lot of times, people don't notice much of a change when they do "minor" trigger work compared to someone who has been shooting a particular pistol for a while

I've had the pistol for going on 10 years, and I've been shooting it quite regularly.

Is the D spring mod considered "minor"? I was expecting a 3-4# drop in the DA pull.

[hybridatsun350]

I have to say that the swap didn't make a very big difference for me. However, I think it may have to do with the fact that the pistol was running an old, worn out hammer spring that had actually become weaker than the new "D" spring. I could be wrong, but that seemed to be the most likely explanation.

[Bill Steele]

I changed out my stock 92FS hammer spring with a lighter Wolff spring, but I forget what weight it was now. It made a significant difference in trigger pull weight on my Beretta.

As I recall, I think the D spring is shorter than stock length as well as lighter. But then, I may be remembering all wrong as it has been a long time since I was tinkering with my 92FS.

If I were you, I would go over to the Beretta Forums and ask away, you will likely get some very specific feedback from those guys.

[voiceoftheright]

If you don't notice the 3 or 4 lb difference then something is up. Either it doesn't work the same as it does on the 92/96 series or you installed the wrong spring. Mainly the D spring only improves double action but some guys feel it helps with single as well. Either way, it is a much needed modification in my opinion, at least for the m9/92/96s.

[zfields]

The original could have been worn pretty well if the gun was 10 years old and didnt have a spring change.

[walmart_ar15]

Recoil spring change together with D spring?

Since D-spring reduces the hammer from 20 to 16 lb, do we need to change the recoil spring to compensate for the less tension? Both the recoil and hammer spring will work against the gun recoil, it would seem reasonable to increase the recoil spring tension when using the D spring

[Dragon]

If you don't notice the 3 or 4 lb difference then something is up. Either it doesn't work the same as it does on the 92/96 series or you installed the wrong spring. Mainly the D spring only improves double action but some guys feel it helps with single as well. Either way, it is a much needed modification in my opinion, at least for the m9/92/96s.

What he said .

[Dragon]

Since D-spring reduces the hammer from 20 to 16 lb, do we need to change the recoil spring to compensate for the less tension? Both the recoil and hammer spring will work against the gun recoil, it would seem reasonable to increase the recoil spring tension when using the D spring

I did not change my main spring. Works like a champ.

[voiceoftheright]

Since D-spring reduces the hammer from 20 to 16 lb, do we need to change the recoil spring to compensate for the less tension? Both the recoil and hammer spring will work against the gun recoil, it would seem reasonable to increase the recoil spring tension when using the D spring

No need to change recoil spring weight. The Beretta 92d (double action only)etc... use the same recoil spring with the D spring. Your F/FS/Gs etc will work the same way with the spring installed and it will cut your double action from 12 lbs to about 8, an immensely noticable difference once installed.