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  • AR-15 Trigger Spring Kit M*CARBO
  • AR-15 Hammer with Lighter Hammer Spring
  • AR-15 Trigger with Lighter Trigger Spring
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AR-15 Trigger Spring Kit

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(4.88) 266 reviews
Price: $14.95
in-stock-product Availability: IN STOCK

Retail: Retail: $17.95

You Save: $3.00 (16.7%)


Quantity:
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Product Information

About This Item

  • The M*CARBO AR-15 Trigger Spring Kit will reduce your trigger pull from a stock 6lbs to a modified ~4.5lbs  (Average results can vary up to +/- 1lb)
  • Improve accuracy and tighten your shot groups
  • 15% Lighter Custom Hammer Spring
  • 40% Lighter Custom Trigger Spring
  • Best AR 15 Trigger Upgrade Kit
  • Your AR-15 Trigger will properly function with all brands of Civilian ammo as well as Military green tip 5.56 ammo.
  • Made from the highest quality American Spring Steel ASTM A228 Music Wire
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

WHAT'S IN THE KIT:

  • Custom Lighter Hammer Spring
  • Custom Lighter Trigger Spring

*The Install Video only covers the Hammer Spring Installation. New Video Coming Soon!*

Description

AR-15 Trigger Spring Kit

    Upgrade the performance of your AR-15 with our AR-15 Trigger Spring Kit - the best AR 15 trigger upgrade kit on the market.

    Made from the highest quality American Spring Steel ASTM A228 Music Wire, this kit will reduce your trigger pull weight from a stock 6lbs to a modified weight of ~4.5lbs (average results can vary up to +/- 1lb), providing improved accuracy and tighter shot groups.

    This kit includes a 15% lighter custom hammer spring and a 40% lighter custom trigger spring, designed to improve your trigger pull weight without compromising the reliability of your firearm. The AR-15 Trigger Spring Kit will properly function with all brands of Civilian ammo as well as Military green tip 5.56 ammo, making it a versatile and reliable choice for any shooter.

    Constructed of the highest quality American Spring Steel ASTM A228 Music Wire, this kit ensures reduced malfunctions and consistent performance. With the M*CARBO AR-15 Trigger Kit, you can expect an excellent AR 15 trigger pull weight reduction, which will significantly improve your shooting experience.

    AR-15 Resources:

    Use the following AR-15 Resources to further enhance your firearm. Download the Official Army Training Manual. Use the different Exploded Views of the AR-15 Parts Diagram to plan your next firearm project. Print or Download any of the AR-15 Resources.

    ARMY 5.56 MM Training Manual AR-15 Exploded View AR-15 Lower Exploded View AR-15 Trigger Spring Kit Printable Instructions


    Build your own AR-15 Lower

    M*CARBO No Hassle 100% Lifetime Guarantee:

    The AR-15 Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

    Drop Tested and Approved:

    AR-15 Trigger Spring Kit is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").

    Tested and Approved:

    The AR-15 Trigger Spring Kit has been tested repeatedly to ensure reliable operation and safety.

    Veteran Owned and Operated Business:

    American made AR-15 Trigger Spring Kit is designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

    ATTENTION:

    You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the AR-15 Trigger Spring Kit. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

    Reviews
    2 lb recuction.
    review-star review-star review-star review-star review-star
    The spring kit dropped my PSA lower's trigger from 7lbs to a 5lb pull. Easy to install. Very happy.
    Trigger and hammer springs
    review-star review-star review-star review-star review-star
    Very easy installation and right off the bat I could my trigger was lighter with out even measuring my trigger pull. I went to the rang and used different variety of ammo and it held up like a champ
    review-star review-star review-star review-star review-star
    Works well as described
    Worth every penny
    review-star review-star review-star review-star review-star
    Shipping was fast and installation is easy. Night and day feeling after installing.
    Doesn't work on Ruger AR556
    review-star review-star review-star review-star review-star
    Hate giving 1 star because it sounds like you're ticked off - I'm not. But I installed this in my Ruger AR556 and it made zero difference. The hammer spring has one less coil, so not sure why. Have already done the paracord break-in routine plus have over 2600 rounds through this gun, so the trigger should be well broken in. I don't know, seems like it should have worked. I'm open to suggestions, especially if you have a Ruger AR556 and it worked in your gun.
    Ar 15 spring kit
    review-star review-star review-star review-star review-star
    Great little kit. Easy install. Can't ask for anything else. Thank you again.
    Does the job!
    review-star review-star review-star review-star review-star
    I was looking for another option to improve my AR triggers besides the ALG purple spring. This fit the bill perfectly
    great product
    review-star review-star review-star review-star review-star
    very happy easy to install trigger is so much better i have arthritis so it was hard for me now its perfect thanks keep up the great work.
    Questions & Answers
    0 0
    Question:
    Will this kit work with 6.5 Creedmoor Ammunition Primers?
    April 20, 2023 8:22 AM
    Answers
    Yes it will function properly on 6.5 Creedmoor Ammunition Primers
    Answered by
    M*CARBO-Tech / April 20, 2023 8:34 AM
    0 0
    Question:
    Hi, does this would fit in my kodiak defence wk180c gen2?
    August 31, 2022 12:16 AM
    Answers
    This part will function in any mil spec trigger group.
    Answered by
    stevenk@mcarbo.com24442 / November 18, 2022 8:20 AM
    0 0
    Question:
    Will this spring kit work in my DB9R
    Larry16SK2S31 April 7, 2022 3:51 PM
    Answers
    Yes the Fire Control Group is the standard AR15 Trigger Group in the DB9R, so this spring will fit and function properly! :)
    Answered by
    Abby Marino / April 18, 2022 11:05 AM
    0 0
    Question:
    will this work in an ar15. 7.62x39 with steel cased ammo...known for light primer strikes.?
    matt p February 28, 2022 4:00 PM
    Answers
    As long as you have a standard AR15 Fire Control Group the spring will fit and will work properly, but it will not resolve an already-prevalent light primer strike issue. We do extensive testing with our springs with MIL-SPEC brass casings but cannot recommend steel-cased ammo for regular shooting unless it's a last resort, due to the wear and damage it can cause to your barrel over time.
    Answered by
    Abby Marino / April 18, 2022 7:40 AM
    0 0
    Question:
    Will this Kit work on M&P AR15-22?
    February 28, 2022 11:03 AM
    Answers
    Yes it will since the lower receiver of the 22 caliber M&P Rifle measures to the same functional specs of the 5.56mm AR-15 lower receiver. The MCARBO Spring kit has also been tested in the M&P15-22 Rifle to ensure reliable and safe operation.
    Answered by
    Abby Marino / April 18, 2022 7:43 AM
    0 0
    Question:
    I have an AR 15 lower with a 450 bushmaster lower, will this spring work? Thank you.
    January 6, 2022 7:15 PM
    Answers
    As long as it is a standard AR15 Fire Control Group this spring will work!
    Answered by
    Abby Marino / April 18, 2022 7:28 AM
    0 0
    Question:
    Will this work on a Db Ar10
    Bmaverick January 4, 2022 2:48 PM
    Answers
    Yes! The Diamondback AR10 still has the same hammer set-up, which means our Hammer Spring is compatible
    Answered by
    Abby Marino / January 5, 2022 2:14 PM
    0 0
    Question:
    will it work on Ar 15 pistol ?
    Sal Hamdalla December 18, 2021 6:55 PM
    Answers
    Yes as long is a normal AR-15 hammer will work on your firearm
    Answered by
    waldo@mcarbo.com37647 / December 20, 2021 9:53 AM
    Yes as long is a normal AR-15 hammer will work on your firearm
    Answered by
    waldo@mcarbo.com37647 / December 20, 2021 9:52 AM
    Yes as long is a normal AR-15 hammer will work on your firearm
    Answered by
    waldo@mcarbo.com37647 / December 20, 2021 9:52 AM
    Yes as long is a normal AR-15 hammer will work on your firearm
    Answered by
    waldo@mcarbo.com37647 / December 20, 2021 9:52 AM

    About This Item

    • The M*CARBO AR-15 Trigger Spring Kit will reduce your trigger pull from a stock 6lbs to a modified ~4.5lbs  (Average results can vary up to +/- 1lb)
    • Improve accuracy and tighten your shot groups
    • 15% Lighter Custom Hammer Spring
    • 40% Lighter Custom Trigger Spring
    • Best AR 15 Trigger Upgrade Kit
    • Your AR-15 Trigger will properly function with all brands of Civilian ammo as well as Military green tip 5.56 ammo.
    • Made from the highest quality American Spring Steel ASTM A228 Music Wire
    • Protected by the M*CARBO 100% Lifetime Guarantee
    • Made in the USA!
    • Fast Same Day Shipping!

    WHAT'S IN THE KIT:

    • Custom Lighter Hammer Spring
    • Custom Lighter Trigger Spring

    *The Install Video only covers the Hammer Spring Installation. New Video Coming Soon!*

    AR-15 Trigger Spring Kit

      Upgrade the performance of your AR-15 with our AR-15 Trigger Spring Kit - the best AR 15 trigger upgrade kit on the market.

      Made from the highest quality American Spring Steel ASTM A228 Music Wire, this kit will reduce your trigger pull weight from a stock 6lbs to a modified weight of ~4.5lbs (average results can vary up to +/- 1lb), providing improved accuracy and tighter shot groups.

      This kit includes a 15% lighter custom hammer spring and a 40% lighter custom trigger spring, designed to improve your trigger pull weight without compromising the reliability of your firearm. The AR-15 Trigger Spring Kit will properly function with all brands of Civilian ammo as well as Military green tip 5.56 ammo, making it a versatile and reliable choice for any shooter.

      Constructed of the highest quality American Spring Steel ASTM A228 Music Wire, this kit ensures reduced malfunctions and consistent performance. With the M*CARBO AR-15 Trigger Kit, you can expect an excellent AR 15 trigger pull weight reduction, which will significantly improve your shooting experience.

      AR-15 Resources:

      Use the following AR-15 Resources to further enhance your firearm. Download the Official Army Training Manual. Use the different Exploded Views of the AR-15 Parts Diagram to plan your next firearm project. Print or Download any of the AR-15 Resources.

      ARMY 5.56 MM Training Manual AR-15 Exploded View AR-15 Lower Exploded View AR-15 Trigger Spring Kit Printable Instructions


      Build your own AR-15 Lower

      M*CARBO No Hassle 100% Lifetime Guarantee:

      The AR-15 Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

      Drop Tested and Approved:

      AR-15 Trigger Spring Kit is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").

      Tested and Approved:

      The AR-15 Trigger Spring Kit has been tested repeatedly to ensure reliable operation and safety.

      Veteran Owned and Operated Business:

      American made AR-15 Trigger Spring Kit is designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

      ATTENTION:

      You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the AR-15 Trigger Spring Kit. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

      Product Reviews (266)
      review-star review-star review-star review-star review-star
      4.88
      2 lb recuction.
      review-star review-star review-star review-star review-star
      The spring kit dropped my PSA lower's trigger from 7lbs to a 5lb pull. Easy to install. Very happy.
      Trigger and hammer springs
      review-star review-star review-star review-star review-star
      Very easy installation and right off the bat I could my trigger was lighter with out even measuring my trigger pull. I went to the rang and used different variety of ammo and it held up like a champ
      review-star review-star review-star review-star review-star
      Works well as described
      Worth every penny
      review-star review-star review-star review-star review-star
      Shipping was fast and installation is easy. Night and day feeling after installing.
      Doesn't work on Ruger AR556
      review-star review-star review-star review-star review-star
      Hate giving 1 star because it sounds like you're ticked off - I'm not. But I installed this in my Ruger AR556 and it made zero difference. The hammer spring has one less coil, so not sure why. Have already done the paracord break-in routine plus have over 2600 rounds through this gun, so the trigger should be well broken in. I don't know, seems like it should have worked. I'm open to suggestions, especially if you have a Ruger AR556 and it worked in your gun.
      Ar 15 spring kit
      review-star review-star review-star review-star review-star
      Great little kit. Easy install. Can't ask for anything else. Thank you again.
      Does the job!
      review-star review-star review-star review-star review-star
      I was looking for another option to improve my AR triggers besides the ALG purple spring. This fit the bill perfectly
      great product
      review-star review-star review-star review-star review-star
      very happy easy to install trigger is so much better i have arthritis so it was hard for me now its perfect thanks keep up the great work.

      Questions & Answers

      8 Questions

      0 0
      Question:
      Will this kit work with 6.5 Creedmoor Ammunition Primers?
      April 20, 2023 8:22 AM
      Answers
      0 0
      Yes it will function properly on 6.5 Creedmoor Ammunition Primers
      Answered by
      M*CARBO-Tech / April 20, 2023 8:34 AM
      0 0
      Question:
      Hi, does this would fit in my kodiak defence wk180c gen2?
      August 31, 2022 12:16 AM
      Answers
      0 0
      This part will function in any mil spec trigger group.
      Answered by
      stevenk@mcarbo.com24442 / November 18, 2022 8:20 AM
      0 0
      Question:
      Will this spring kit work in my DB9R
      Larry16SK2S31 April 7, 2022 3:51 PM
      Answers
      0 0
      Yes the Fire Control Group is the standard AR15 Trigger Group in the DB9R, so this spring will fit and function properly! :)
      Answered by
      Abby Marino / April 18, 2022 11:05 AM
      0 0
      Question:
      will this work in an ar15. 7.62x39 with steel cased ammo...known for light primer strikes.?
      matt p February 28, 2022 4:00 PM
      Answers
      0 0
      As long as you have a standard AR15 Fire Control Group the spring will fit and will work properly, but it will not resolve an already-prevalent light primer strike issue. We do extensive testing with our springs with MIL-SPEC brass casings but cannot recommend steel-cased ammo for regular shooting unless it's a last resort, due to the wear and damage it can cause to your barrel over time.
      Answered by
      Abby Marino / April 18, 2022 7:40 AM
      0 0
      Question:
      Will this Kit work on M&P AR15-22?
      February 28, 2022 11:03 AM
      Answers
      0 0
      Yes it will since the lower receiver of the 22 caliber M&P Rifle measures to the same functional specs of the 5.56mm AR-15 lower receiver. The MCARBO Spring kit has also been tested in the M&P15-22 Rifle to ensure reliable and safe operation.
      Answered by
      Abby Marino / April 18, 2022 7:43 AM
      0 0
      Question:
      I have an AR 15 lower with a 450 bushmaster lower, will this spring work? Thank you.
      January 6, 2022 7:15 PM
      Answers
      0 0
      As long as it is a standard AR15 Fire Control Group this spring will work!
      Answered by
      Abby Marino / April 18, 2022 7:28 AM
      0 0
      Question:
      Will this work on a Db Ar10
      Bmaverick January 4, 2022 2:48 PM
      Answers
      0 0
      Yes! The Diamondback AR10 still has the same hammer set-up, which means our Hammer Spring is compatible
      Answered by
      Abby Marino / January 5, 2022 2:14 PM
      0 0
      Question:
      will it work on Ar 15 pistol ?
      Sal Hamdalla December 18, 2021 6:55 PM
      Answers
      0 0
      Yes as long is a normal AR-15 hammer will work on your firearm
      Answered by
      waldo@mcarbo.com37647 / December 20, 2021 9:53 AM
      0 0
      Yes as long is a normal AR-15 hammer will work on your firearm
      Answered by
      waldo@mcarbo.com37647 / December 20, 2021 9:52 AM
      0 0
      Yes as long is a normal AR-15 hammer will work on your firearm
      Answered by
      waldo@mcarbo.com37647 / December 20, 2021 9:52 AM
      0 0
      Yes as long is a normal AR-15 hammer will work on your firearm
      Answered by
      waldo@mcarbo.com37647 / December 20, 2021 9:52 AM

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