ILS in Springers

Discussion in '1911 Forum' started by NGIB, Aug 26, 2009.

  1. NGIB

    NGIB New Member

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    I'm sure most everyone knows that Springer 1911s have an internal locking system located in the mainspring housing. While the lock really doesn't bother me at all it does cause one problem so I always change them out. The internals of the MSH of ILS Springers is different and you can't use regular mainsprings. I generally run 19# mainsprings in all of mine as the stock 23# just aren't necessary. This is really important if you use a rimfire conversion kit as with the lighter mainspring, it'll be less ammo picky.

    Anyway, if you decide you want to change the MSH on your Springer, remember to buy the internals (cap, plunger, retaining pin, and new mainspring) as the Springer ILS internals won't work in a stock MSH...
     
  2. badeye

    badeye New Member

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    Im not a smith at all but was thinking about getting the Kimber conversion kit for my Springer. Do you think i may have several issues with this? You always seem to have a good answer and i really appreciate it. Eye
     

  3. NGIB

    NGIB New Member

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    It's always possible. I ran my Kimber kit on a Kimber Tactical Pro (really made a cool - but VERY expensive .22). It would shoot CCI Minimags great but regular bulk ammo had a few problems. Switching to the 19# mainspring removed these problems and the gun became very reliable with bulk .22 ammo.

    Remember, the ammo has to "fight" the recoil spring as well as the mainspring (to cock the hammer). The swap is very easy to do and no special tools are required. One trick I always use when swapping MSHs is to use a zip tie or large rubber band to hold the grip safety engaged tightly. By doing this, the sear spring wont move around when you change the housing avoiding another potential problem...
     
  4. badeye

    badeye New Member

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    AS always,thanks for the advice......that Kimber conv is just a nice looking unit and i dont think i can go thru life much longer without it....lol. Eye
     
  5. NGIB

    NGIB New Member

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    The newer Kimber units (mine was) are actually made by Kimber. The older ones were relabled Cieners...
     
  6. canebrake

    canebrake New Member

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    Great info Dave!

    I don't think you will find that quality of info in your model's manual!

    Gentlemen, this is what FTF is all about!

    Thanks NGIB
     
  7. NGIB

    NGIB New Member

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    Glad to help.

    The benefit of trading lots of guns is I get hands-on experience with them. I really try to help folks avoid the mistakes I made, especially with home gunsmithing. The first MSH I changed, I didn't secure the grip safety and the sear spring moved a little without my knowledge. About 3 days later I had this 1911 at the bowling pin shoot and the trigger locked up during the event - lesson learned...
     
  8. SGT-MILLER

    SGT-MILLER New Member

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    Thanks for the post. This will help out lots of members.