Posted: 9/1/2005 3:39:05 PM EDT
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A standard mainspring housing assembly consists of the mainspring housing itself, a mainspring housing retaining pin which goes in the bottom of the housing and holds it to the frame, the mainspring retaining pin which has a cone-shaped head, the mainspring, the mainspring cap, and a mainspring cap retaining pin. Does the Springfield ILS system NOT use a mainspring cap retaining pin, i.e. is the mainspring cap allowed to push up against the hammer spur beyond the mainspring housing itself? |
| You are correct that Springfield does not use the cap retaining pin, even though the MSH is drilled for one. When you replace the internals with a proper spring and cap, add the cap retaining pin, too. On the Springers that I have retained the original MSH, that is what I have done, and the results are a standard MSH, with an inoperable lock. |
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I replaced the MSH and parts on my SA GI Champion. I found a parkerized GI type Flat housing at a Gunshow for $15 and the guts for $10. Easy swap - works like it was designed now  Lots of info on 1911.org forum.m1911.org/showthread.php?t=1595&highlight=replace |
So that's what that thing is for! Mine came with two wrenches, two ILS keys, and that little thingy. I didn't see any mention of it in the manual. |
That's the same thing I was planning to do, i.e. retain the original Springfield MSH and simply buy a new mainspring cap and its retaining pin. I had wondered whether I could use the same mainspring housing instead of buying a new one, and just leave the ILS in place in the unlocked position. The ILS lock won't bother me in place as long as it stays inoperable. Thanks! |