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 No Hassle 100% Lifetime Guarantee against any product quality issues or workmanship defects. If parts fail or are deemed defective we will send you a replacement regardless.


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 167 Reviews:
Massachusetts (MA)

awesome

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super fast shipping even faster install ..hit the range the next day and saw an immediate difference in pull .. Excellent product right off the rip

Delton and S&W 15 /22

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I put the spring in both my inexpensive Delton and S&W 15/22 . it was very easy following the video .the Delton went from an average of 7 pounds on my spring gauge to 5 1/2 so that is much better . i was hoping for more but that is fine. the S&W went from an average of 5 to exactly 4 every time .so a little improvement for a few bucks .

Pensacola, FL

2nd Trigger in 4 years and still awesome performance...

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Tweaking a new Saint AR-15 and the stock trigger was pulling just under 7 pounds. Nothing I could live with...ever. Bought my 2nd AR Spring and swapped it out. New pull weight is coming in at 5.5lbs. OMG...NIGHT and DAY difference. Crisp let off and consistent feel...Range tomorrow for some live fire and function time...Thanks Boys...JP, CW4, USA-Ret., AH-1/AH-64 IP/SP...

Seemed to help

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I don't have the gauge to check how many pounds my trigger is, but I was able to tell right away that it was much better after replacement. Very affordable, fast shipping, and easy install. I highly recommend this for anyone.

AR 15

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SPRING WORKED FINE, MAYBE COULD BE A BIT LIGHTER ?