Welcome to M1911.ORG
The M1911 Pistols Organization Forums Site


Dear members,
Please make sure the email address we have for you, is correct and valid.


Sponsors Panel
If you intend to buy something from the companies advertising above, or near the bottom of our pages, please use their banners in our sites. Whatever you buy from them, using those banners, gives us a small commission, which helps us keep these sites alive. You still pay the normal price, our commission comes from their profit, so you have nothing to lose, while we have something to gain. Your help is appreciated.
If you want to become a sponsor and see your banner in the above panel, click here to contact us.

Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Changing slide and barrel from 3” to 4”

  1. #1
    Join Date
    15th March 2019
    Posts
    31
    Posts liked by others
    1

    Changing slide and barrel from 3” to 4”

    I have a .45 cal. Kimber Ultra Crimson Carry II with a 3” slide and barrel. I have been thinking about changing it to a 4” slide and barrel as well as recoil spring, but I’m not sure if that can be done.
    does anyone have any ideas or suggestions? I have not contacted Kimber yet as the don’t publish a email address on their website.
    so I thought I would get some expert advice about if it can be done and where to look if not at Kimber this 1911 has a aluminum frame if that matters.
    I am wanting to make the change to be sure that I have abdicate velocity for expansion and penetration.
    any advice would be greatly appreciated.

  2. #2
    Join Date
    31st July 2005
    Posts
    2,174
    Posts liked by others
    23
    LeeR1911 - are you going to replace the slide with a kimber 4" slide and barrel? I have done that with my Colt officers acp frame replacing the slide with a colt commander and barrel which is 4.25" and it worked with no issues at all. The officers acp frame's ejector is the same as the colt commander's ejector. I believe kimber ultra with a 3" barrel has the same ejector with a kimber compact 4" barrel.

  3. #3
    Join Date
    31st July 2005
    Posts
    2,174
    Posts liked by others
    23
    LeeR1911 - you may want to try loading the kimber ultra with dummy rounds after you've replaced the slide and barrel with a 4" to determine how it loads and ejects the dummy rounds.

  4. #4
    Join Date
    15th March 2019
    Posts
    31
    Posts liked by others
    1
    Ric4509 -
    thanks for the information!
    yes I was thinking about going with a Kimber 4” barrel, same .45 cal.
    I appreciate your response.

  5. #5
    Join Date
    2nd June 2004
    Location
    Terra
    Posts
    21,822
    Posts liked by others
    649
    Since your Kimber is a "II" model, it has a Swartz type firing pin safety. I don't know if that can be made to work with standard slides, the way Colt Series 80 guns can use non-Series 80 slides by replacing the frame levers with a spacer. Which means if you buy a replacement slide, be sure it's a "II" slide, set up for the firing pin safety.
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside

  6. #6
    Join Date
    15th March 2019
    Posts
    31
    Posts liked by others
    1
    Thanks Hawkmoon
    i emailed Kimber customer service. Did not get an answer, so I called them.
    they told me that don’t sell just slides, barrels, and recoil springs. That I would have to either buy a new pistol or go with after market parts.
    so I guess my question is who would you guys recommend as a after market supplier? I really wasn’t wanting to go that way for the reason that Hawkmoon addressed.
    I went on the google web and Colt is out of stock on every thing.

  7. #7
    Join Date
    2nd June 2004
    Location
    Terra
    Posts
    21,822
    Posts liked by others
    649
    I would go to Caspian for a slide, but I don't think they are set up to do a Kimber firing pin safety, and you'll have to settle for a 4-1/4" barrel rather than a 4".

    Quite candidly, considering the hurdles involved, IMHO you would be better off selling the pistol and buying another in the length you want.
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside
    Likes (3) :
    BrettID (28th July 2020), LarryM (29th July 2020), Rick McC. (28th July 2020)


  8. #8
    Join Date
    2nd June 2004
    Location
    Terra
    Posts
    21,822
    Posts liked by others
    649
    I found a schematic for a Kimber "II" 1911. Unfortunately, it's copyrighted, so I can't post it here.

    I can't tell from the schematic whether or not you can just remove the frame link to be able to use a slide with no firing pin safety. I'm leaning toward the idea that you would have to find a spare link and cut the top off it.
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside
    Likes (1) :
    Rick McC. (31st July 2020)


  9. #9
    Join Date
    15th March 2019
    Posts
    31
    Posts liked by others
    1
    Hawkmoon

    I am begging to think that it would save a lot of frustration to just buy a new pistol.
    thanks to everyone for the advice. It is appreciated.
    Likes (1) :
    Rick McC. (31st July 2020)


  10. #10
    Join Date
    20th May 2016
    Location
    Northern Calif.
    Posts
    19
    Posts liked by others
    5
    Quote Originally Posted by LeeR1911 View Post
    I have a .45 cal. Kimber Ultra Crimson Carry II with a 3” slide and barrel. I have been thinking about changing it to a 4” slide and barrel as well as recoil spring, but I’m not sure if that can be done.
    does anyone have any ideas or suggestions? I have not contacted Kimber yet as the don’t publish a email address on their website.
    so I thought I would get some expert advice about if it can be done and where to look if not at Kimber this 1911 has a aluminum frame if that matters.
    I am wanting to make the change to be sure that I have abdicate velocity for expansion and penetration.
    any advice would be greatly appreciated.
    I think I can offer some assistance. I have a Kimber Ultra CDP, and a Kimber Compact CDP, a 4” version of the Ultra, same stock size on both. As you know, the Ultra has a ramped barrel, good for an aluminum frame. The Compact does NOT have a ramped barrel. I can’t tell how Kimber protects the Compact’s aluminum frame in the ramp area, I don’t see an insert on the ramp, perhaps they harden that critical area?
    I have put the 4” Compact slide on the 3” Ultra receiver. It fits on, but the gun will not function - dry fire, no ammunition loaded.
    I’d say Hawkmoon has the correct answer: sell the 3”, and buy a 4” 1911.
    Cheers,
    Peter

    NRA Benefactor Life Member
    Last edited by Peters; 1st August 2020 at 12:03.


Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  



Sponsors Panel
If you intend to buy something from Brownells, please use their banners above. Whatever you buy from them, gives us a small commission, which helps us keep these sites alive. You still pay the normal price, our commission comes from their profit, so you have nothing to lose, while we have something to gain. Your help is appreciated.
If you want to become a sponsor and see your banner in the above panel, click here to contact us.

Non-gun-related supporters.
Thank you for visiting our supporters.