19-06-2018, 08:50 PM
My ineffective springs are 21mm long overall, and they don't seem to operate until the 8 degree stops are reached. I note someone on the web has measured the "set of 5" Lucas springs (in this report, from Anglo Parts) which have been discussed elsewhere. They range from 16.1mm to 18.1mm in length.
https://www.custompistols.com/lucas-25d4...tions.html
https://www.custompistols.com/lucas-25d4...tions.html