I used to be cavalier about springs, then got complusive, and now live in moderation.
Recoil: remove the upper and do a basic strip. Swap out the old spring and put in a new spring every 5-10,000 rounds. Since yu get a new firing pin spring with it, swap that at the same time.
Firing pin springs hve a small and large end. The small end goes on first, and has to be forced onto the shoulder in front of the riding band.
As for the mainspring and three-leaf sping, I've never changed one. Not even on my high-mileage Pin gun, with somewhere in the vicinity of 80,000 rounds through it.
Resist the temptation to go with a heavier spring for "reliable feeding." Follow the Wolff guidelines and you'll be fine.
Recoil: remove the upper and do a basic strip. Swap out the old spring and put in a new spring every 5-10,000 rounds. Since yu get a new firing pin spring with it, swap that at the same time.
Firing pin springs hve a small and large end. The small end goes on first, and has to be forced onto the shoulder in front of the riding band.
As for the mainspring and three-leaf sping, I've never changed one. Not even on my high-mileage Pin gun, with somewhere in the vicinity of 80,000 rounds through it.
Resist the temptation to go with a heavier spring for "reliable feeding." Follow the Wolff guidelines and you'll be fine.