Best AR-15 Trigger Spring Upgrade Kit

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  • Reduce your trigger pull from a stock 6 lbs to a modified 4.5 lbs
  • Improve accuracy and overall rifle performance
  • Kit includes a Custom Hammer Spring
  • Best AR 15 Trigger Upgrade Kit
  • Made of the highest quality 302 Stainless Steel Spring Wire
  • Protected by the MCARBO 100% Lifetime Guarantee
  • Made in the USA
  • Fast Same Day Shipping!

AR-15 Trigger Spring Kit consists of a custom designed and manufactured:

  1. Hammer Spring

The AR-15 Trigger Spring Kit will reduce your trigger pull from a factory weight of 6 lbs to a modified weight of 4.5 lbs. Your Trigger will properly function with all brands of Civilian ammo as well as Military green tip 5.56 ammo. This Kit is made of the highest quality spring steel available, right here in the USA. The AR-15 Trigger Spring Kit will improve your accuracy and tighten your shot groups. Reduced malfunctions should be expected because the trigger spring kit is constructed of the highest quality 302 stainless spring steel. The MCARBO AR-15 Trigger Spring Kit was designed and tested to properly function with all brands of civilian and military grade ammunition. Expect an excellent AR 15 trigger pull weight reduction without compromising the reliability of your firearm.

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.

100% Lifetime Guarantee:

The AR-15 Trigger Spring Kit is protected by the MCARBO 100% Lifetime Guarantee. This means that at any time you can send it back and we will exchange it, issue a refund or assist you in any way possible.


Tested and Approved:

The AR-15 Trigger Spring Kit has been tested with numerous brands of civilian and military grade ammunition to ensure reliable operation and safety.


Veteran Owned and Operated Business:

American made gun parts designed and manufactured by Combat Veterans. We will donate 5% 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. Installation by MCARBO is available and recommended. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without this 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.

Q: Will this kit work for my AR15-22 M&P Rifle?

A: 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.

MCARBO 100% Lifetime Guarantee - This means that at any time you can send it back and we will exchange it, issue a refund or assist you in any way possible.

ATTENTION: We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon my be prohibited in your state. 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 my be incurred.

Overall Customer Rating of 32 Reviews:

ar 15 trigger spring kit

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got the trigger spring kit for my diamond back 556 from the factory it had a 6.5 to 7 pound pull after installing this spring it is down to a 4.5 to 4.0 pull great product

Lewisville tx.

Ar15 trigger spring

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This is a game changer for all of you guys that have bought guns with terrible triggers. It's the real deal

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Received ar-15 trigger springs, one was damaged in shipping and was able to restore it to its original configuration, no big deal.

Well engineer designed.



Delivery was quick and the springs performed as advertise.

Will be back for more products. Job well done.

California

Trigger spring

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Liked the first one so much that i bought another for for my second build.

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Fast easy replacement of the stock trigger with solid performance. Found a custom cerakoted AR I liked and picked up the guy with the company was really impressed with the light trigger pull. Only at the range it would only fire the high quality brass ammo. I noticed they cut one leg of the spring off to lighten the trigger. Which made the rifle unreliable. No more issues with the new trigger from MCARBO it's running all the different brands of ammo including the steel case with the hard primers with no issues in 40 deg temps.