Ever since the day I got my HK P30 I’ve wanted a gun with such great ergonomics to have a better trigger system. The VP9 is the gun that I was looking for.
The P30 does have a nice trigger, compared to the PPQ, the VP9 trigger is less gritty and has a faster take up, though the VP9 trigger does have a noticeable and gradual creep that measures 5.8 pounds before breaking in. So it’s time to take the gun apart and see what I can do. Of course, I would have taken it apart anyways just to understand how it works. 🙂
** Disclaimer **
Any disassembly would void the warranty on your pistol, and any alteration to your pistol can be potentially dangerous or fatal. This blog post is a reference and not meant to be instructions. Do not attempt this if you’ve never had prior gunsmithing experience. Also consult an experienced gunsmith in person if you have questions. Perform at your own risk.
Tools you’ll need:
- 2mm punch
- 3mm punch
- 3/4″ flat screwdriver or smaller
You can make it work with punches in imperial sizes, but the 1/8 punch is slightly bigger than 3mm and can easily hurt the frame by enlarging the holes. Money not worth saving.
Disassembly – trigger group
We start off by removing the slide. If you can’t perform that task then you really shouldn’t continue with the rest of this guide 🙂
First, remove the spring pins. There are TWO spring pins, one within the other. Remove the smaller one with your 2mm punch, then the larger one with the 3mm punch. These pins are really tight! Rest the gun on thick cloth and clamp the gun down with bar clamp so it won’t bounce around and cause scratches.
There is another pin to remove. This is a solid pin that only goes in half way. I use a flat head screwdriver for better leverage when pushing it out.
Remove the slide lock next. You’ll need to hold the trigger back, then push the slide lock forward and you can take it out.
Last piece holding the trigger group together is the slide release on the right side. There is a clip that keeps the slide lock in place. You can easily pop it out with any screwdriver or pin punch.
The trigger housing can be taken out, but be careful or springs will fly out in all directions. 🙂
First, remove the trigger return spring
Now make note on the slide release return spring, be sure not to lose it.
Now turn the gun around and it’s time to take the trigger housing out. As you start taking the housing up, you’ll see a black metal tab. That is the magazine ejection lever.
Time to collect the slide release return spring if you haven’t already done so
The trigger bar comes out on one side, side release comes out the other. Note that I already polished some of the contact points so the bar has silver marks on them. The silver spring wire keeps the trigger bar against the disengager that’s sitting right above it in the photo. When the slide is not in battery the disengager will push the trigger bar down and keep it from contacting the sear.
Disassembly – Sear Group
Sear housing is held together by one pin, however it can’t come out unless the trigger bar is first removed.
The housing itself is held together with one spring pin. The rest can be easily taken apart with the 2mm or 1/16 pin punch by hand.
If you wish to smooth out the trigger, all the work will be done on the sear itself. You can polish out the sear where it rubs along the sear housing, then of course, you can polish the sear itself. For those who are more adventurous can be more aggressive on the top corner of the sear, and creep will be lowered as trigger weight would also go down by about 1/4 pound. The sear spring itself can be replaced with a lighter one to further reduce trigger weight. I wouldn’t recommend anything more than 1/2 pound lighter for safety reasons.
Another easy mod to lower trigger pull is to bend the trigger return spring slightly to reduce the weight of initial update which adds to the overall weight of the break.
At the end, I smoothed out the trigger and got the pull down to 4lb with adjustment to the trigger return spring, the sear, and replacing the sear return spring. Your mileage may very.