Springfield "Loaded" Mainsprings

[ZeusOne]

My Springfield Loaded 1911 .45 model has a heavy trigger pull. So I ordered some lighter mainsprings from a reputable dealer, only to discover that they don't fit. Apparently, the spring used in the lockable mainspring housing is of a different length than the 1911 standard.

Am I wrong, has anyone else experienced this or have a solution?

 

[Jim Watson]

You are correct, the mainspring cap plunger is longer in the key lock guns to give a place for the lock cylinder to engage. So the mainspring is shorter. I see two choices: Inquire with Wolff to see if they have ILS springs yet; or get a conventional mainspring cap and a conventional spring and forget about the lockup. Check with your legal advisor before disabling any safety device no matter how ridiculous, of course.

 

[ZeusOne]

Jim,

Thanks for the confirmation, and unfortunately, our friends at Wolff don't have this part yet. Your suggestion of acquiring a standard endspring cap is much appreciated.