Plastic Mainspring Housing??!! WHY? - Kimber Forum

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Old 02-05-2014, 11:05 PM   #1
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Unhappy Plastic Mainspring Housing??!! WHY?

I'm disappointed!! I just discovered that the mainspring housing on my Custom Stainless II is plastic, not stainless steel!!! At first I did not believe it until I looked at the bottom of the matte gray housing and saw the seam mark from the injection mold! Why just this one part? Weird!!

Now I feel compelled to try to chase down a real stainless steel housing. I hope this doesn't turn into a Holy Grail type search!!

Looks like it won't be a Holy Grail after all. I can get a new Ed Brown stainless mainspring housing with chain link checkering for $46.99 from MidwayUSA. Like Alan Jackson said in the song......"It ain't no problem, it just takes money"!! Or I can order another Kimber plastic on for $20!!
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Last edited by Lineman; 02-05-2014 at 11:44 PM.
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Old 02-06-2014, 03:22 AM   #2
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easy job to replace...the EB SS housing is top quality. Just installed one with the magwell on my new Stainless Gold Match II.



I like the EB mainspring housing w/magwell because the magwell can be removed without touching the MS housing. It's held on by one hex headed bolt recessed into the magwell.

I have a custom set of Hogue magwell grips on order to fill the gap between the grip and magwell...Hogue said 30-45 days for the custom order.
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Old 02-06-2014, 04:54 AM   #3
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I have never heard of a problem with the MSH. If it was an issue, they wouldn't use them. Lighter weight is one reason.
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Old 02-06-2014, 06:39 AM   #4
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I thought that everyone has heard about the famous plastic mainspring housings on Kimbers. It's the first thing they complain about right after drinking the Kimber magazine kool-aid.

Seriously, I've read hundreds of posts complaining about the housing but I've never heard of anyone that actually had one fail or break. Ed Brown and Wilson Combat are just two places where you can get a replacement housing. In most cases they drop right in, worse case they will require a little minor fitting.
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Old 02-06-2014, 07:48 AM   #5
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I too have never heard of a problem with Kimbers MSH. Don't worry about it, and spend your money on ammo!
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Old 02-06-2014, 03:27 PM   #6
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I guess we all had that concern when we found the plastic but 1000s of round down the pipe and no problem with mine, though I might change it one day just to get a fancier one.
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Old 02-06-2014, 09:36 PM   #7
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Wink

I have no function problem with the plastic mainspring housing. It has stood up through thousands of rounds, dirt, sweat, heat and cold with no problem. I just find it odd that the construction material would be changed out for that single part!!

My search for a new stainless MSH is not critical. It is more an OCD thing than anything else. Call it an old age quirk, if you will!! I'll add it to my bucket list!!

Just wanted to know how many others had noticed!!
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Old 02-07-2014, 04:25 AM   #8
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Originally Posted by lineman73 View Post


Just wanted to know how many others had noticed!!
I thought everyone knew.
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Old 02-07-2014, 05:13 AM   #9
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Perhaps the chainlink design would be less abrasive the then OEM MSH
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Old 02-08-2014, 08:15 AM   #10
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MSH swap

Yes, there is nothing wrong with plastic other than the idea of plastic as cheap. I know there are other guns with a lot of plastic parts. But I will probably change mine out because the beauty of a 1911 is that there are so many ways to modify them to make them your own.

And, hell, I just love to tinker.

I also like the look of a machined mag well, so I'll probably put one of those on.
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