Few questions about Custom II - Kimber Forum


Go Back   Kimber Forum > Kimber Forum Discussions > Gunsmith

LinkBack Thread Tools Display Modes
Old 05-18-2016, 07:25 AM   #1
Junior Member
Join Date: May 2016
Posts: 5
Few questions about Custom II

Hello all. I have just purchased a Custom II in 45. Overall it is a nice gun. I was very disappointed when I discovered that the mainspring housing is plastic. I am sure this is not an issue for function, but the perception is metal is quality. Plastic is not.
Is there any issue if I change it out? Maybe Kimber makes an official metal one that will not harm the warranty.

The slide lock pin is also very tight. It is either the slide lock hole in the frame is undersize, or the pin is oversize.

I am speaking about perhaps .001".

I also bought a Kimber rimfire kit in 22lr. Terrific kit. Very accurate and very reliable as long as 1200 fps or higher quality ammo is used. It does not cycle with garbage. I can probably put a weaker mainspring in it, and it would cycle cheap bulk ammo.

The interesting thing is the kit works great on my Ruger SR1911, but it doesn't properly fit on the Kimber Custom II. Go figure? The issue is the slide lock pin. If I install the pin by fiddling around with it and holding the slide slightly back to align the hole in barrel lug to the frame hole, I then can't engage the thumb safety. If I remove the slide stop pin, then the safety engages. It is so close that the diameter of the pin makes a difference. If I use the Ruger slide stop ( just the pin portion for a test) it works.

I would have thought that for the Kimber the kit would fit perfectly out of the box.

I realize that this is simply a case of tolerance stack. I will call Kimber later today and ask them for help. Hopefully their CS is good.

Anyway, thank you for listening to me, and please give me any thoughts you may have on the mainspring housing and the slide stop pin.

Thank you and kind regards

redlightrich is offline   Reply With Quote
Remove Ads
Old 05-18-2016, 12:34 PM   #2
Senior Member
Mike240's Avatar
Join Date: Aug 2013
Posts: 1,729
Field strip the gun and insert the slide stop into the frame hole, check for issue. Do same with slide stop pin through the barrel link. The frame whole is likely .200" and the pin on all chambers I have measured are .196". If the gun is shooting fine but this is an issue it may have a burr in a hole or the feet on the barrel that make alignment an issue. degrease, mark pin, barrel feet/lower lugs with sharpie marker and try again look for wear marks in the layout ink.

Does the gun reassemble without recoil spring? holes line up?

Colt used plastic mainspring housing for years and may still do. easy to change but keep the original in case you have to send the gun back to kimber...or they will restore it factory and charge you or the parts. Its their weird policy.
Yea. Keep telling yourself that split times donít matter.
Mike240 is offline   Reply With Quote
Old 05-19-2016, 09:09 PM   #3
Junior Member
Join Date: May 2016
Posts: 5
Hello and thank you. I will give those items a try. It appears to be tolerance stack. The slide stop pin is .1995 and the thumb safety is very tight to the slide.

I took my slide stop from my Ruger ( measures .198) and it gives a little more room.

I will get this together with the procedures you mention.

Thank you

redlightrich is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Magazine questions Mullet85 Kimber Talk 15 11-28-2015 03:50 PM
H&K P2000sk questions ?? canonshooter Other Firearms 4 02-23-2015 09:18 AM
EDC Questions. PorscheVille Kimber Talk 24 05-29-2014 06:18 PM
Extended Mag Questions Oreste Kimber Solo Forum 5 01-25-2014 09:10 PM
Kimber Custom 2 TLE buyers questions Redriver6 Kimber 1911 Forum 4 11-25-2013 09:30 PM