SIG Talk banner
  • Notice image

    SigTalk is a forum community dedicated to SIG Sauer enthusiasts. Come join the discussion about Sig Sauer pistols and rifles, optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more!

3 different era Sigs 3 different main spring and struts.

654 Views 7 Replies 6 Participants Last post by  Willard
Never occurred to me till this morning while swapping grips. Top is a 92 WG P226 9mm, middle is a 81 WG P220 9mm, bottom is a 21 MK25 9mm.
Air gun Trigger Line Gun barrel Material property
Bicycle part Auto part Machine Gun accessory Trigger
See less See more
2
  • Like
Reactions: 3
1 - 8 of 8 Posts
Thanks for posting. I have/had all three styles and converted a couple. I always hold on to the original parts.
  • Like
Reactions: 3
You missed another, with the long polymer seat and shorter strut, that came before the current short polymer seat with longer strut.
  • Like
Reactions: 1
You missed another, with the long polymer seat and shorter strut, that came before the current short polymer seat with longer strut.
I really can’t tell the difference between one from the other, even while staging a slow double action pull. I suppose the reason is to refine the pull weight and feel.
I really can’t tell the difference between one from the other, even while staging a slow double action pull. I suppose the reason is to refine the pull weight and feel.
I don't know the reason for changing the all metal struts. Would be interesting to know.

I think the different polymer seats were an attempt at making them less expensive to manufacture. They came out with the long polymer seat and short strut as their first attempt at a cost reduction. But that no longer worked when they introduced the one-piece ergonomic grip. They needed a smaller seat than the long polymer one to have room for the ergonomic grip to provide a smaller circumference, higher on the grip.
  • Like
Reactions: 1
Remember, the early pinned designs were originally made, when "user" maintenance was basically field stripping for cleaning, and any further was for trained personnel. Any further disassembly was performed by factory trained personnel (armorers) or knowledgeable gunsmiths. Anyone who has swapped Mainsprings on the older pinned assemblies, have always needed more than 2 hands, as they are tiresome. While they can be smoothed up, there is a lot of possible metal to metal contact, which can lead to friction. The plastic Seat does lessen metal to metal contact with the Seat, but still allows contact of the Strut with the Mainsprings coils.

While doubtful, the heel magazine catch designs will work any other way, than they currently are, the side magazine catch allowed "change".

The pinned assembly allowed a longer Mainspring, giving a reasonable mechanical advantage. When changed to the "New Style" for easier Mainspring changes, the Mainspring was mounted higher and raised the base, making for a reduced mechanical advantage, so the improvement to the "E2" style strut, moved the Mainspring lower by lengthening the strut, regaining the mechanical advantage.

Font Auto part Automotive exterior Event Brand
See less See more
  • Like
Reactions: 4
1 - 8 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top