Arched mainspring housing / magwell - Kimber Forum

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Old 11-12-2014, 06:16 PM   #1
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Arched mainspring housing / magwell

Got rid of that stock plastic mainspring housing today in favor of an arched housing with magazine well.

I think it looks pretty snazzy.





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Last edited by JohnnyGeek; 11-15-2014 at 01:25 PM.
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Old 11-12-2014, 06:23 PM   #2
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Looking good. Was it difficult to do?
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Old 11-12-2014, 06:27 PM   #3
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Oh no not at all. It took about 2 minutes to install, and I went kinda slow.

It's a Smith & Alexander - $68 bucks from eBay.
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Old 11-12-2014, 06:30 PM   #4
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Looks very nice!
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Old 11-12-2014, 06:36 PM   #5
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Nice work, I think it looks great.
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Old 11-12-2014, 06:39 PM   #6
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Sweet!! I like the grips too.
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Old 11-14-2014, 04:27 PM   #7
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Update - I may have come across a problem.

When I installed it, I never took the slide off. Now that it's on, removing the slide is a teeny bit of an issue, and replacing it is impossible. At first glance, it appears to be hitting the little button connected to the grip safety - but I'm not 100%. I put the old mainspring housing back on, and everything is fine again.

I compared the two side by side, and the new "officers size" housing appears as if it might be a mm or so taller than the old one. I'm not sure.

In any case, I'm going to tear the whole thing apart this weekend and investigate wtf is going on, and resolve it if I can. I'll post up surgery pics as soon as I get this figured out.

Stay tuned.
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Old 11-14-2014, 04:36 PM   #8
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If you're going to replace parts on your gun(s), invest in a dial caliper. Every reloader I know has one and should be a required tool in any home gunsmith shop. Ask me how I know.

BTW, A good model will cost anywhere from $18 for plastic to $35 or so for metal.
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Old 11-14-2014, 04:57 PM   #9
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I've got a good set of digital calipers - I just held them up next to each other when I put it in. And - mainly I trusted that Kimber couldn't possibly use something that wasn't a "standard" officer size part, right? Hehe. I may have to do a little bit of alteration to it.

I changed just about everything you can change on my cheapy RIA officer's size, including a mainspring housing with magwell - and never ran into an issue. Keep in mind, it's also entirely possible that I've got a piece of who-knows-what stuck in something, or I missed the tab on the sear spring, or something else - it might not be the new housing at all.

I'll know more tomorrow when I tear it apart. Mainly I just wanted to be sure I posted a "hey...hang on a sec", before someone else went out and bought a Smith & Alexander brand officer's size mainspring housing because I said it'd work.
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Old 11-14-2014, 06:03 PM   #10
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Not everything is plug and play, on some guns I've had parts drop right in and on others I've had to do some file work.
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