Remington Rifle Shims and Parts at TriggerShims

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    TriggerShims
    Remington Gun Shims

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    We Manufacture the Widest Selection of Gun Shims to be Found Anywhere on the Planet

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    Shively Sales - Manufacturer of
    TriggerShims Brand
    Gun Shims
    in
    Michigan Center, Michigan

    "Better to be poor and honest than to be dishonest and rich." Proverbs 28:6

    Contact Us

    ~ Send Lance an Email ~

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    God Bless the U.S.A.

    American Made Gun Shims for Remington

    God Bless America

    Remington Rifles
    and Shotguns
    Remington Rimfire Bolt Shims

    Also see our Uberti Remington Page


    ~ Quick Links to Items on This Page ~

    Remington 40X Bolt Shims
    Remington 5 Bolt Shims
    Remington 540X Bolt Shims
    Remington 504T Bolt Shims
    Remington 513T Bolt Shims

    TECH TIP BLOG: Remington and CZ Bolt Shims - A Joe Berk Blog
    TECH TIP: Bolt Shim Instructions ~ A General Guide
    TECH TIP VIDEO: REM 40X Bolt Shims

    Remington Shotgun Shims and Parts
    Remington Rifle Gun Springs

    Rem40X

    Remington Model 40X Bolt Shims

    Remington 40X

    Remington Model 40X Small-Bore Target Rifle Bolt Shims

    The Remington Model 40X Small-Bore Target Rifle was introduced in 1955 and chambered for the .22 Caliber Long Rifle Cartridge

    Bolt Shims for 1950’s Vintage Remington 40X Target Rifles that were also sold at CMP up through 2010+

    Remington 40X

    Also may fit other models, check your bolt size to confirm
    Rem 40X Bolt Shim ~ .570" X .690"

    How does a Bolt Shim work?
    The actual head space is in the recessed face of the bolt. Shimming between the two bolt halves ensures the bolt is up tight against the breech. If the bolt is not up tight against the breech it tends to cause misfires and light strikes.

    Remington 40X Close-up

    When the bolt action rifle’s bolt locking surfaces become worn increases in the headspace can cause light firing pin strikes, poor ignition (misfires), looseness of the bolt, and loss of accuracy. Excessive headspace causes the bolt to feel loose.

    When searching for Accuracy, ~or~ If you are getting misfires and light strikes shimming the bolt is a good way to solve it.

    Remington 40X Bolt Shim 4 Pak include;
    1 X .002" - 1 x .003" - 1 X .004" and 1 X .005"

    Total of .014" potential adjustment so you will be assured
    to have more than needed to adjust one rifle.

    NOTE: Be Advised this bolt may have taper pins that must be pressed out in the right direction.
    I have found they also have straight pins that are 5/64" Diameter

    ~ Click Here for Rem 40XB Parts and Diagram ~

    TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $

    NEW 5 Piece Kits ~ Include .0015" Shims for Finer Adjustment

    • 4 Pak Assortment - $11 includes 1 each .002", .003", .004" and .005"
    • 5 Pak Assortment - $14 includes 1 each .0015", .002", .003", .004" and .005"
    • Use Drop-Down V and Buy 2X Double or 3X Triple Pak and Save $
    • 2 Shim Pak - $7.50  *Specify your size in Box Below .0015" or .002" - .007"
    • You can Request Your Own Assortment Thicknesses In Box Below
    • Includes Free ~ First Class Mail Economy Shipping

    Remington 40X Shims

    .570" X .690" Remington 40X Bolt Shims

    Item # SS-REM40X/BS

    Click Box to Choose Different Quantities

    Remington 40X Bolt Shim Pak 570 X 690
    Choose Assortment Shim Pak
    Enter Choice / Request Below

    👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION

    👉Link To: INTERNATIONAL TERMS / POSTAGE $1

    Special Thanks to Tim for Field-Testing and Photo's


    TECH TIP VIDEO: Remington 40XB with TriggerShims.com Bolt Shims

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    Rem540X

    Remington Model 540X Bolt Shims

    Remington Model 540X Small-Bore Target Rifle Bolt Shims
    Also Fits Remington 541T

    Fits all 540 / 541 Series

    Should Also Fit Remington 580 581 582

    TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $

    NEW 5 Piece Kits ~ Include .0015" Shims for Finer Adjustment

    • 4 Pak Assortment - $11 includes 1 each .002", .003", .004" and .005"
    • 5 Pak Assortment - $14 includes 1 each .0015", .002", .003", .004" and .005"
    • Use Drop-Down V and Buy 2X Double or 3X Triple Pak and Save $
    • 2 Shim Pak - $7.50  *Specify your size in Box Below .0015" or .002" - .007"
    • You can Request Your Own Assortment Thicknesses In Box Below
    • Includes Free ~ First Class Mail Economy Shipping

    Remington 541

    .357 X .595 Remington 540X Bolt Shims

    Item # SS-REM540X/BS

    Click Box to Choose Different Quantities

    Remington 540X Bolt Shim Pak 357 X 595
    Choose Assortment Shim Pak
    Enter Choice / Request Below

    👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION

    👉Link To: INTERNATIONAL TERMS / POSTAGE $1


    Remington 541T Bolt Pin

    The Bolt Assembly Pin is KNURLED on one end, and would require great care to disassemble. After disassembly, you would want to locate a split pin available from a hardware store, cut to the correct length and sanded down on the OD so it just fits with hand pressure for shim testing.
    Replacement Bolt Assembly Pin Pictured Product # 707620C available at Numrich Gun Parts Corp



    Rem504T

    Remington Model 504T Bolt Shims

    Remington Model 504 and 504T
    Small-Bore Target Rifle Bolt Shims

    TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $

    NEW 5 Piece Kits ~ Include .0015" Shims for Finer Adjustment

    • 4 Pak Assortment - $11 includes 1 each .002", .003", .004" and .005"
    • 5 Pak Assortment - $14 includes 1 each .0015", .002", .003", .004" and .005"
    • Use Drop-Down V and Buy 2X Double or 3X Triple Pak and Save $
    • 2 Shim Pak - $7.50  *Specify your size in Box Below .0015" or .002" - .007"
    • You can Request Your Own Assortment Thicknesses In Box Below
    • Includes Free ~ First Class Mail Economy Shipping

    Remington 504

    .450 X .595 Remington 504T Bolt Shims

    Item # SS-REM504T/BS

    Click Box to Choose Different Quantities

    Remington 504T Bolt Shim Pak 450 X 595
    Choose Assortment Shim Pak
    Enter Choice / Request Below

    👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION

    👉Link To: INTERNATIONAL TERMS / POSTAGE $1


    Rem513T

    Remington Model 513T Bolt Shims

    Remington Model 513 and 513T
    Remington 521 and 521T
    Small-Bore Target Rifle Bolt Shims

    Grandpa's Notebook: Customer Tech Tip Video


    TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $

    NEW 5 Piece Kits ~ Include .0015" Shims for Finer Adjustment

    • 4 Pak Assortment - $11 includes 1 each .002", .003", .004" and .005"
    • 5 Pak Assortment - $14 includes 1 each .0015", .002", .003", .004" and .005"
    • Use Drop-Down V and Buy 2X Double or 3X Triple Pak and Save $
    • 2 Shim Pak - $7.50  *Specify your size in Box Below .0015" or .002" - .007"
    • You can Request Your Own Assortment Thicknesses In Box Below
    • Includes Free ~ First Class Mail Economy Shipping

    .480 X .570 Remington 513T Bolt Shims

    Item # SS-REM513T/BS

    Click Box to Choose Different Quantities

    Remington 513T Bolt Shim Pak 480 X 570
    Choose Assortment Shim Pak
    Enter Choice / Request Below

    👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION

    👉Link To: INTERNATIONAL TERMS / POSTAGE $1

    Thanks TriggerShims Field Tester Todd Moody for his help on this shim


    Rem5

    Remington Model 5 Bolt Shims

    Remington Model 5
    .22 Rifle Bolt Shims

    Remington Model 5 manufactured in Serbia by Zastava Arms
    Model 5 also sold under Interarms and Charles Daly

    Fits:
    Zastava CZ99 and/or MP22 (depends when made)
    Remington Model 5
    Charles Daly MP22

    These Shims Measure .442" X .555"

    Fits Bolt Size .433" X .590" plus/minus .005"


    TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $

    NEW 5 Piece Kits ~ Include .0015" Shims for Finer Adjustment

    • 4 Pak Assortment - $11 includes 1 each .002", .003", .004" and .005"
    • 5 Pak Assortment - $14 includes 1 each .0015", .002", .003", .004" and .005"
    • Use Drop-Down V and Buy 2X Double or 3X Triple Pak and Save $
    • 2 Shim Pak - $7.50  *Specify your size in Box Below .0015" or .002" - .007"
    • You can Request Your Own Assortment Thicknesses In Box Below
    • Includes Free ~ First Class Mail Economy Shipping

    .442 X .555 Remington 5 Bolt Shims

    Item # SS-REM5/BS

    Click Box to Choose Different Quantities

    Remington 5 Bolt Shim Pak 442 X 555
    Choose Assortment Shim Pak
    Enter Choice / Request Below

    👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION

    👉Link To: INTERNATIONAL TERMS / POSTAGE $1


    10/08/2025
    Bolt Shims - Joe Berk Blog

    Post from Our Friend Joe Berk's
    The ExhaustNote Blog

    Bolt Shims - Joe Berk Blog

    Joe Berk writes a blog on TriggerShims Bolt Shims in his Remington 504 and CZ452 Varmint. Joe's Blog shows the targets he shot and improvement in accuracy in his two fine rimfire rifles.
    Click the photo to visit Joe's Blog Post on The ExhaustNotes Blog or
    CLICK HERE for Joe's The ExhaustNotes Blog Link
    Please leave a comment and tell him Lance at TriggerShims.com sent you!


    Bolt Shim Instructions
    Bolt Shim Instructions
    TriggerShims Snek

    LANCE'S TECH TIP:
    Rimfire Bolt Shim Installation
    ~ A General Guide ~

    Rimmed Cartridges use the thickness of the cartridge rim for head-spacing.
    .22 Rimfire Cartridges Headspace on the Case Rim.
    The Actual Headspace is in the Recessed Face of the Bolt.
    You Must Make Sure this Recessed Bolt Face is Equal To or Deeper Than Your Rim for Safety
    Generally speaking, there is extra room left in production guns between the Bolt and Breech to accommodate a wide variety of ammunition with varying rim thicknesses.
    You should first measure the depth of your bolt face pocket to ensure it meets SAAMI Headspace minimum depth.
    Shimming between the two bolt halves ensures the bolt is seating the cartridge up gently against the breech with your chosen brand of ammunition.
    You can use our color-coded numbered shims like a gauge to find when the bolt face touches the barrel breech face, and then calculate where you want to be with your bolt headspace depth and rim thickness measurements.
    I cannot tell you which shim best works with your rifle; you decide that yourself by fitting and feel and by shooting.
    Installing Bolt Shims requires fitting by hand and checking with the Bolt installed in the Rifle and Locked Down - you do not measure with the Bolt out of the Rifle.
    To establish the Bolt/Breech fit, shims are installed and fitted on an empty chamber.
    If possible, it may give you a better feel if you leave the extractors off some rifles while fitting shims.
    Start with a 4 or 5 pack of shims, install the .0015" or .002" thinnest shim and see how your bolt closes. If it seems to close as normal, then continue to install each thicker shim until the bolt starts to close harder than normal, stacking shims if necessary.
    At the point where your bolt begins to close hard, that was the amount of slack that was in your bolt, measured by whatever shim or shims combined were needed to bring the bolt up tight to the breech.
    Now it is best to remove that shim and step back one number. For example, if a .005" Red Shim causes the bolt handle to close harder than normal, then take it out and install a .004" Purple Shim.
    If you have to force or put undue stress on your bolt to close it, you should reduce the number of shims.
    You will generally only use 1 of the 4 or 5 shims in the package, but you can stack shims together if needed.
    When you have the correct shim installed, your bolt should close normally or just (ever-so) slightly tighter than normal.
    If the bolt closes slightly tight, it is best to back up one step, remove .001".
    Put a very small drop of oil on the shim.
    Now you can go to the range and, with the barrel pointed in a safe direction, once again check fit with your favorite ammo.
    Due to variations in rim thickness, you may have to reduce the thickness of shims. Remember, you have already removed all the excess headspace from the bolt/breech, so now the only thing to do is remove thickness (shims) if/as needed to get to your sweet spot or required headspace for the rim thickness of your favorite cartridge.
    For longest shim life, use a drop of oil or a (very small amount of) grease on your shim.
    If you have to force or put undue stress on your bolt to close it, you should reduce the number of shims.
    A minimum of clearance should be maintained while maintaining proper headspace. Do not put undue stress on the bolt by shimming too tightly as it is unnecessary!
    At no time do you want to force the bolt to close or to crush the rim. Did I explain that clearly?
    Forcing the Bolt to Close will put premature wear on the bolt shims and will not increase accuracy.
    If you have any questions, use a headspace gauge to check for proper headspace.
    Bolt Shims have in many instances cured light strikes.
    Will they help with accuracy? Don't take my word for it. Read our Customer Reviews or ask our Customers.
    Simply Chambering More Consistently Yields More Consistent Results.
    Your Satisfaction is Guaranteed. If you feel you receive no benefit, you may send your shims back to TriggerShims for a Full Refund.

    Click Here to Open Instructions in a Printable PDF:
    LANCE'S TECH TIP: Rimfire Bolt Shim Installation Instructions

    TriggerShims.com Shim Thickness Color Code

    All TriggerShims Gun Shims are Made in the USA from Precision Brand American Made 304 Stainless Steel Stock and have a Guaranteed Factory Tolerance of plus or minus 10%.
    Shims are marked with colored permanent marker that will wear off or strip off with oils or solvents.
    If you are testing, plan on keeping your shims in separate marked small envelopes or using a micrometer.

    • .0015" - Yellow
    • .002" - Black
    • .003" - Blue
    • .004" - Purple
    • .005" - Red
    • .006" - Orange
    • .007" - Green
    • .008" - Pink
    • .009" - Brown
    • .010" - Yellow
    TriggerShims Bolt Shim Instructions Copyright 2008 - 2025 V7/2025

    TriggerShims Snek

    Rimfire Rifle Bolt Shim Index


    BoltShim-INDEX 9/24

    Our Ever Expanding Selection of Rimfire Rifle Bolt Shims

    Links to Our List of .22 Rifle Bolt and Barrel Shims

    1. Anschutz 54 ~ Now In Stock!
    2. Bergara B-14R Rimfire Bolt Shims
    3. CZ and BRNO Rimfire Bolt Shims
    4. CZ 457 Rimfire Bolt Shims
    5. Kimber 82G Target Rifle Bolt Shims
    6. Lithgow LA 101 and SA 2020 Rimfire
    7. Marlin 80 / 983 Rimfire Bolt Shims
    8. Mossberg 44 U.S. Bolt
    9. Mossberg 144 LSB Bolt
    10. Remington 5 Bolt Shims
    11. Remington 40X Bolt Shims
    12. Remington 504T Bolt Shims
    13. Remington 513T / 521T Rimfire Rifle
    14. Remington 540X Bolt Shims
    15. Ruger American Rimfire Bolt Shims
    16. Ruger 77/17 77/22 Bolt Shims
    17. Savage BMag Bolt Shims
    18. Savage MKII Bolt Shims - Prototype
    19. Springfield Armory Model 2020 Rimfire
    20. Suhl 150 Rimfire Rifle
    21. Tikka T1x and Sako P72 / M78 Rimfire Rifle / Walther KK300
    22. Turbo V3 / Flash Turbo Bolt Shims
    23. Walther KK500 Rimfire Bolt Shims
    24. Winchester 43 and 52 Bolt Shims
    25. Winchester 69 and 75 Bolt Shims

      26. ~ Barrel Shims ~

    26. CZ 455/457 Barrel Shims
    27. CZ 455/457 XL Barrel Shims
    28. 10/22 Barrel Shims
    29. 2500X and Trident Barrel Shims
    30. 3/4" Shank Bull Barrel Shims

    NOTE: email me to be put on a list to Request a New Bolt Shim ~ Send Lance an Email ~

    Unsolicited Testimonial:
    Just a friendly note on the bolt shims I purchased and installed. My 5 shot group went from dime size at 50 yds to everyone touching and not being able to count individual holes.
    Thank You for a Great Product ~ Riley in WV

    Unsolicited Testimonial:
    Lance, I simply wanted to say thank you for providing Bolt Shims. My first one installed was on my Bergara B-14 22 Trainer. I won the club season matches in 2022. It's more accurate now than my winning season. After seeing an improvement, in an already accurate rifle, I've shimmed my Bergara Shooting Rimfire barreled action, two CZ 457, my 2020 Springfield, and my my 54 Annie. The Anschutz allowed for 5th place in the IR 50/50 factory class last year. I shimmed it yesterday. The common fliers were less frequent and overall consistency was improved. A noticeable improvement was seen in all the rifles.
    Thanks again for offering a great product ~ Rob in NC




    Remington Shotgun Shims and Parts


    BOX870

    Remington 870 / 1100 Trigger Shims

    .156" X .310"

    Trigger Shim Pak Assortments BELOW are as follows;

    2 Pak comes in .002"
    4 Pak comes with 2 each .002" and .003"
    6 Pak comes with 2 each .002", .003" and .004"
    8 Pak comes with 2 each .002", .003", .004" and .005"
    12 Pak comes with 4 each .002", .003", .004"
    20 Pak comes with 4 each .002", .003". .004", .005" and .006"
    24 Pak comes with 6 each .002", .003", .004" and .005"
    30 Pak Gunsmith Special Assortment comes with 6 each .002", .003", .004", .005" and .006"
    -OR-
    Choose ANY Pak and Specify Your Requested Thickness in Comment Box
    Available in Stainless Steel ~ .002" - .009" Thickness

    156X310 ~ Universal 1022 Hammer / REM 870 T Shim
    Shim Thickness
    Enter Choice / Request Below

    Remington Rifle Gun Springs


    Remington 700 Rifle
    Reduced Power Trigger Spring

    Trigger Spring for Remington 700 Only -
    Reduced Power - Improved let-off and trigger pull.
    Long and Short Actions


    Stock No. 33240........8.95 Free USA Only Shipping


    Remington Rifle Extra Power Ejector Spring

    700, 721 and 722 Series
    Stock No. 33243........8.95 Free USA Only Shipping


    Wolff Blitzschnell Speed-Lock Striker Springs for
    Remington Bolt Action Rifles - Extra Power

    700, 721 and 725 Long and Short Actions

    Note: Factory Standard Spring Weight is #24
    Our Extra Power Springs are #28 - The Most Popular Weight

    Note: 40X Centerfire use No. 63428

    Stock No. 63428 Short Action #28 ..........$14.95 Free USA Only Shipping
    Stock No. 63528 Long Action #28 ..........$14.95 Free USA Only Shipping

    Choose Short or Long Below

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    and
    TriggerShims is a Trademark
    of
    Shively Sales
    Michigan Center, Michigan

    All Material Copyright of Lance Shively
    2008 ~ 2025

    God Bless and Make America Great Again!

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    YOU ASSUME ALL RESPONSIBILITY FOR THEIR SAFE INSTALLATION AND USAGE.
    YOU RETAIN ANY AND ALL RESPONSIBILITY FOR YOUR OWN ACTIONS. Be Safe!!

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