Hi there,
This trigger shield mod got me curious. I just Googled it.
It looks like a must to prevent gritty trigger. I found 2 or 3 different designs.
Which one are you using?
I like this one, but he doesn't give all the specs
http://xavierthoughts.########.ca/2008/11/ruger-mkii-blast-shield.html
that looks pretty close. I took these abridged notes based on a few sites as I recall...
Purpose: Keeps the plunger area clean allowing for a consistent trigger pull.
1. Field strip weapon.
2. Using your favorite beverage can. Cut a strip .8” wide by 2.5” long.
3. Cut a whole the same size as the barrel hook on the grip frame approximately .5” from one end. (I found at this point that if I pressed down on the 'square'... you'll know it when you see it... it made an easier template to cut the hole than trying to measure it. An exacto knife and a pair of scizzors is all I needed)
4. Lay the strip in the gun over the barrel hook.
5. Make an angled cut right behind the arm on the disconnector that rests on the trigger
plunger/spring approximately .25” or so it will clear the disconnector.
6. Make a similar cut on the other side, so it will clear the bolt release.
7. Place the small end in the trigger hole behind trigger on both 22/45’s and Mark II’s.
8. Insert magazine and pull trigger ensure there is no binding.
9. Assemble weapon as normal.
10. Trim end behind trigger so approximately .25” is visible.