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Thread: Arched mainspring housing
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May 17th, 2013, 09:36 AM #1Junior Member
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Arched mainspring housing
I like the feel of an arched mainspring housing compared to the flat mainspring housing. I have a Springfield Loaded 1911 which came with a flat mainspring housing. How hard is it to swap one of these out? I was told by a CS rep at Springfield Armory that this could be done but some fitting would need to be done to the new housing. Any advice appreciated. Thanks!
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May 17th, 2013, 09:51 AM #2Junior Member
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Williamsport,
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Re: Arched mainspring housing
Some mainspring housings will be a drop in fit to the frame, especially if you use another mainspring housing from springfield. Aftermarket mainspring housings may or may not need fitting to the gun (for width and the dimensions of the guide rail).
Smith & Alexander MSHs have been drop in for the most part in the past.
Does your mainspring housing have Springfield's locking mechanism in it? If so, you will need a new spring and plungers to install the replacement housing unless you get an arched MSH from Springfield with the lock system in it.
I believe I even have an arched Springfield MSH with their ILS in it that I'm never going to use. If you want it, send me a PM and you can have it.
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May 17th, 2013, 11:45 AM #3Member
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Moon Township (Pittsburgh),
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Re: Arched mainspring housing
I have probably replaced 20 differen't mainspring housings in the past from Ed Brown, Wilson, S&A, Springfield, EGW, etc... and never have I ever needed to fit anything. Don't forget that your Springfield has an ILS housing so the guts from it will not work in a standard mainspring housing. You will need to buy those parts separately. I recommend this kit from Brownells.
http://www.brownells.com/handgun-par...prod27082.aspx
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May 19th, 2013, 01:54 PM #4Junior Member
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Re: Arched mainspring housing
Appreciate the offer Dusty, but I'm going to bypass that ILS. Thanks for the advise and the link as well...very helpful!
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May 19th, 2013, 01:59 PM #5Junior Member
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Re: Arched mainspring housing
I mean DINGO! Thanks for the offer Dingo. I'm going to bypass that ILS. Appreciate it though.
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May 19th, 2013, 02:06 PM #6
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May 19th, 2013, 02:44 PM #7
Re: Arched mainspring housing
Nighthawk MSH needed to be fitted little(was too long and top needed to be filled tiny bit) for my Springfield loaded 9mm
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