Girsan Hi Power clone trigger work.

Started by Graybeard, March 30 2023 07:09:21 AM MDT

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Graybeard

I recently won a MC-P35 at a DU dinner. Overall it seems fairly well made, but the stock trigger was atrocious. First thing to come out was the magazine disconnector. That took out the gritty take up. The break is pretty clean, but still quite heavy.

I've done a fair amount of successful trigger jobs on other guns over the years, but this it the first time I've worked on a Hi Power style trigger system. After researching it, the Girsan has the "drop safety" style sear lever in the slide, like the MKIII Hi Power. The spring on the sear lever seems unnecessarily strong and would accordingly add to the trigger pull weight. The hammer spring is also heavier than original Hi Powers, but changing that could create a timing issue and the gun runs flawlessly.

So my questions are does the sear lever even need a spring as my research indicates the MKI didn't have one? Was there an actual issue with safety if the gun was dropped or was it like the 1911 series 70 nonsense?  Would it have any adverse effect installing a much lighter sear lever spring?

Thanks in advance. I know we have some very knowledgeable members here.

sqlbullet

None of my High Power's have that feature.

I found this thread on the topic interesting.  Perhaps you have already found it, but if not it is worth a read.  Down near the bottom one of the members documents the changes incrementally and the amount of change to trigger pull weight.

https://www.1911forum.com/threads/sear-lever-spring-and-reset.352936/

I would also suggest you check out BHP spring solutions: 

https://bhspringsolutions.com/index.php/product-category/shop-by-model/hi-power/girsan-mc-p35/

https://bhspringsolutions.com/index.php/hi-power-university/


Graybeard

Thanks Sqlbullet. I didn't seem much different between the MKI and MKIII schematics except the sear lever spring. I was assuming it would run just fine without it.

I hadn't seen that particular post, but it would seem that the difference was notable, but not great for that individual. It may also speak to the Hi Power's slide to frame fitment having an impact on the trigger mechanism, thus the result of any changes may vary from gun to gun.

I'll probably pull out the sear lever and polish the sides, remove the spring, and see how it feels.

I did spend some time on the BHsolutions site. They offer a reduced weight sear lever spring as part of a spring kit. Since I'm only into this gun for $80 in raffle tickets, I did briefly consider sending it to them. But, since I'm cheap and like to do things myself, I'm going to give it a go on getting it where I want it.

sqlbullet

Let us know how it goes.

Also, those European guns tend to come with a hammer spring designed to set off the hardest NATO primer ever made in the history of the universe.  Every Hi and High Power I have ever owned or shot has run pretty much without issue, even those with very old and tired springs.  I would not hesitate to swap the factory hammer spring with a BHP Solutions or Wolff Springs US-spec replacement.  Probably save a good bit right there.

Best of luck.  I love the P35.  Have three of my own plus my oldest daughter has one.

Graybeard

Thanks Sqlbullet. I will, most likely, end up swapping out springs. It did occur to me from manually cocking the hammer it was a very stout spring.

Graybeard

So, my Girsan is now back together with most of a BH Solutions spring kit in it. The trigger has improved substantially. Didn't replace the extractor spring or the trigger disconnector spring, as that is not in the gun.

The hiccup I ran into was taking off the right side safety paddle. What should have been an easy job to tap out the rolled pin ended up breaking off my 1/16" punch in the hole. I had to cut it off with a Dremel and order another ambi safety from EAA. After inspecting the new one I discovered a 1/16" punch starts easily into the new paddle, but the hole is tapered smaller before it gets to the shaft from the other side. Might be cast that way during MIM molding, might be EDM, I don't know.

The good news is EAA shipped the new one rather quickly and no fitting was required. So $40 for a new safety and $35 to BH Solutions have made this gun much more user friendly.

Thanks for your advice Sqlbullet.

sqlbullet

Good to hear.  Roll pins are great and terrible things.  Interesting that the hole was tapered.  Usually a taper hole goes with a taper pin, and a roll pin goes with constant diameter hole.  Glad it worked out!


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