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 M*CARBO 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 M*CARBO 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.

No Hassle 100% Lifetime Guarantee:

The AR-15 Trigger Spring Kit is protected by the M*CARBO 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.


Drop Tested and Approved:

M*CARBO ASTM Spec Springs will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+).


Range 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 Parts designed and manufactured by Combat Veterans. We 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.

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.

Q: Will this kit work with 6.5 Creedmoor Ammunition Primers?

A: Yes it will function properly on 6.5 Creedmoor Ammunition Primers

No Hassle M*CARBO 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. No Hassles Ever!

We pride ourselves in making quality parts for guys like us that appreciate great performance out of a well made firearm. So if you don't get the results you we're expecting or just don't like it. We will make it right by any means necessary. Send us an email to help@mcarbo.com We also pride ourselves in outstanding customer service so send us an email and we will show you.

Once you're part of the M*CARBO Brotherhood your not just a customer...you're a Brother! M*CARBO Brotherhood - Veterans, Police Officers and 2nd Amendment Patriots! A portion of all sales go to the Military Foundations we humbly support.

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 113 Reviews:
SC

AR 15 trigger spring kit

Rating:
Pros:
Cons:
This is a spring replacement for the the hammer spring. I was pulling (avg) 8 lbs on a mil spec PSA lower assy. I could feel the grittiness in the trigger robbing some of the accuracy I was accustomed to. I bought this kit and installed it after polishing the contact or "breaking" surfaces of the trigger assembly. The trigger is awesome now and pulling a mere 4 1/2 lbs. So much smoother. I recommend this to any one who is looking to improve their shooting experience with mil spec equipment. It feels like a much higher end piece now.

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Awesome spring. Makes my pattern much better with the easier pull

Illinois

Good stuff

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I have had 100% reliability from this spring set. If life depends or it, or if you just.want to have a good day at the range, m-carbo parts will help make a better experience of it. A+ seller.

Will be ordering more!

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Work great for 300 blk pistol build. trigger breaks a clean 4lb for me. Thanks mcrabo!

Texas

AR-15 Spring

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Ordered the AR 15 spring with the hope of eliminating some of the rough drag during trigger squeeze. First of all let me say my order was quickly filled and shipped out. I received my order promptly and installed it immediately. I was quite impressed with a better and smoother trigger action. A lot of that gritty trigger pull was gone. Installation is very simple and instructional videos are there if someone needs it. Don’t hesitate to purchase one.