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Installed Wilson Combat Match Trigger on Sig 1911 Nitron Rail (Pics)

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  • jimster716
    Senior Member
    • Oct 2011
    • 839

    Installed Wilson Combat Match Trigger on Sig 1911 Nitron Rail (Pics)

    I love my Sig 1911 Nitron Rail. I shoot most accurately with this 1911 than any of my 9mm and .40 pistols. But if there's anything that's bugged me about it is the shiny silver trigger, sticks out like a sore thumb on an otherwise mostly black, stealthy gun. It also has a bit of vertical slop that contributes a bit of rattling.

    Before. Only mod is the VZ grips.


    I decided to do something about the trigger. I looked at the STI trigger but didn't want a plastic trigger. Instead I ordered a Wilson Combat Match trigger in black.

    Because it's a match grade trigger, it requires fitment. I had never fully stripped my 1911 but after doing the $0.25 trigger job and minus (-) connector on my Glock 19 and installing the Apex Tactical trigger and action enhancement kit on my S&W Shield, I was feeling pretty confident I could do this job. After watching a video or two on YouTube, I was able to complete a full strip on the 1911 with no drama.

    The Wilson Combat match trigger has a smaller bow than the stock trigger, reducing weight. If I have any complaint, there was a considerable amount of overspray of the black finish on to the bow (see pic below). Not a huge deal but the bow slides along the inside of the frame adding unnecessary friction. I ended up polishing the bow to clean it up a little.



    So first attempt to insert the new trigger and it wouldn't fit, not a surprise as Wilson states that as a match trigger, custom fitting will most likely be required. I took a file to the trigger on both the top and bottom. For every swipe on the top I'd make a file swipe on the bottom. It took about a dozen swipes on the file for both the top and bottom to get the trigger to travel relatively smoothly. I completed the treatment by polishing the top and bottom of the trigger with my dremel and metal polish for a bright and slick finish. The new trigger glides smooth with no slop, very excited to try this out.

    I assembled the 1911 but it took some time. The Sig Sauer 1911's are based off the 1911 Series 80 Commander pattern. The big thing was the trigger bar lever that popped out during stripping. I had to do some research to identify this part and understand how to get the pistol back together.

    After identifying the part I searched youtube and found this great video on reassembling Series 80 1911's.


    After reassembly, I did function checks with the safety and grip safety. Everything works as expected. The only thing I have left to do is adjust the travel screw if necessary.

    Here she is, very happy with the results and I highly recommend this upgrade for Sig 1911 owners. I may swap out the Sig beavertail safety with its weird bump but it doesn't really bother me so I can wait.
    LA County CCW Renewal Progress
    4/01/21: Mailed CCW app w/GC: Yellow.
    4/14/21: $30 App Fee check deposited
    5/25/21: Request for interview
    6/03/21: Interview completed and Livescan submitted w/CA and FBI completed
    6/14/21: Firearms Livescan: completed
    8/16/21: Request to complete firearms training
    8/22/21: Gun training completed/Certs submitted
    10/11/21: Call to pickup
    10/13/21: CCW permit picked up
  • #2
    Brown Rock
    Veteran Member
    • May 2009
    • 4528

    I like it.
    Fernando became an American the courageous way. By outrunning the speed boat.

    Comment

    • #3
      Garand1911
      Senior Member
      • Sep 2002
      • 1443

      can you feel a difference ?
      "I saved your life, AND brought you pizza" -- Me

      Comment

      • #4
        Prof Bob
        Junior Member
        • Aug 2015
        • 30

        Big difference visually. Compliments on your gunsmithing skills, as well.

        Comment

        • #5
          jimster716
          Senior Member
          • Oct 2011
          • 839

          Originally posted by Garand1911
          can you feel a difference ?
          I haven't taken it to the range but I no longer have the vertical slop of the factory trigger which can affect accuracy by any minute variances in point of aim from an inconsistent pull. I'm going to adjust the overtravel with the set screw and included Allen wrench.

          Going back to my original complaint about the Wilson Combat black overspray, funny how the package from Wilson specifically mentions how the bow is polished to reduce trigger to frame friction. I guess they spray after polish, waste of a polish job but I just went in and re-polished.
          LA County CCW Renewal Progress
          4/01/21: Mailed CCW app w/GC: Yellow.
          4/14/21: $30 App Fee check deposited
          5/25/21: Request for interview
          6/03/21: Interview completed and Livescan submitted w/CA and FBI completed
          6/14/21: Firearms Livescan: completed
          8/16/21: Request to complete firearms training
          8/22/21: Gun training completed/Certs submitted
          10/11/21: Call to pickup
          10/13/21: CCW permit picked up

          Comment

          • #6
            jimster716
            Senior Member
            • Oct 2011
            • 839

            Originally posted by Prof Bob
            Big difference visually. Compliments on your gunsmithing skills, as well.
            Thank you, it was a fun little project. I'm convinced people should get to know their firearms better with little jobs like this. Learned a lot about the series 80 pattern just by reassembling the gun.
            LA County CCW Renewal Progress
            4/01/21: Mailed CCW app w/GC: Yellow.
            4/14/21: $30 App Fee check deposited
            5/25/21: Request for interview
            6/03/21: Interview completed and Livescan submitted w/CA and FBI completed
            6/14/21: Firearms Livescan: completed
            8/16/21: Request to complete firearms training
            8/22/21: Gun training completed/Certs submitted
            10/11/21: Call to pickup
            10/13/21: CCW permit picked up

            Comment

            • #7
              Divehobo
              Senior Member
              • Apr 2010
              • 1271

              Looks sharp with the black Wilsons' trigger. I might have to follow your lead. Looks like minor fitting along upper and lower flats were done to help fit opening. Any polish work on 80's parts, disconnector, sear, trigger bow or hammer while you had it apart? Amazing how a fine stone can smooth out trigger pull.

              If so, did you notice any weight drop with trigger pull gauge?
              NRA Pistol, Rifle, CCW and Metallic Reloading instructor

              Comment

              • #8
                jimster716
                Senior Member
                • Oct 2011
                • 839

                Originally posted by Divehobo
                Looks sharp with the black Wilsons' trigger. I might have to follow your lead. Looks like minor fitting along upper and lower flats were done to help fit opening. Any polish work on 80's parts, disconnector, sear, trigger bow or hammer while you had it apart? Amazing how a fine stone can smooth out trigger pull.

                If so, did you notice any weight drop with trigger pull gauge?
                The only thing I polished was the bow to remove the black overspray and polished the length of the bow. Since the gun already had a pretty nice break I really didn't want to mess with it not knowing completely where any friction points could use some polish without risking removing too much metal.
                LA County CCW Renewal Progress
                4/01/21: Mailed CCW app w/GC: Yellow.
                4/14/21: $30 App Fee check deposited
                5/25/21: Request for interview
                6/03/21: Interview completed and Livescan submitted w/CA and FBI completed
                6/14/21: Firearms Livescan: completed
                8/16/21: Request to complete firearms training
                8/22/21: Gun training completed/Certs submitted
                10/11/21: Call to pickup
                10/13/21: CCW permit picked up

                Comment

                • #9
                  DArBad
                  Veteran Member
                  • Dec 2009
                  • 3002

                  I bought a brand new Colt 1991 last December, few weeks before it fell off roster. I didn't like the trigger as there is a lot of slop, side to side and up and down.

                  I replaced it with a Fusion K-hole trigger. Big, big improvement over the stock.

                  Congrats OP, its very satisfying when you can improve a factory stock gun on your own.

                  Comment

                  • #10
                    jimster716
                    Senior Member
                    • Oct 2011
                    • 839

                    Originally posted by DArBad
                    I bought a brand new Colt 1991 last December, few weeks before it fell off roster. I didn't like the trigger as there is a lot of slop, side to side and up and down.

                    I replaced it with a Fusion K-hole trigger. Big, big improvement over the stock.

                    Congrats OP, its very satisfying when you can improve a factory stock gun on your own.
                    Thanks. Agreed, very satisfying! That fusion trigger looks sweet!
                    LA County CCW Renewal Progress
                    4/01/21: Mailed CCW app w/GC: Yellow.
                    4/14/21: $30 App Fee check deposited
                    5/25/21: Request for interview
                    6/03/21: Interview completed and Livescan submitted w/CA and FBI completed
                    6/14/21: Firearms Livescan: completed
                    8/16/21: Request to complete firearms training
                    8/22/21: Gun training completed/Certs submitted
                    10/11/21: Call to pickup
                    10/13/21: CCW permit picked up

                    Comment

                    • #11
                      9 mm
                      Member
                      • Jul 2012
                      • 495

                      looks nice, i did the same

                      Comment

                      • #12
                        FIREBALL_BRIAN
                        Senior Member
                        • Apr 2011
                        • 2379

                        Looks a lot better
                        Short Action Precision ! USA !

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                        https://www.calguns.net/calgunforum/...8#post22678428

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                        • #13
                          heidad01
                          Veteran Member
                          • Feb 2012
                          • 4902

                          It does look much better without that shiny silver trigger.

                          Comment

                          • #14
                            E92335i
                            Veteran Member
                            • Mar 2013
                            • 2937

                            awesome trigger!

                            Comment

                            • #15
                              BoJackUSMC
                              Calguns Addict
                              • Aug 2010
                              • 7091

                              Like it... it looks much better with black trigger..

                              Comment

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