Home > AR-15 Parts >

AR15 / AR10 Reduced Power Hammer Spring

AR15 Mil-Spec Reduced Hammer Spring | AR-15 | reduced power spring | ar15triggerjob.com
 
Alternative Views:
This hammer spring is all you need to replace in order to lighten (reduce the weight) of your AR15 and AR10 trigger giving you a cleaner trigger pull for increased accuracy. It can be installed in a matter of minutes and works on all GI, Mil-Spec triggers both single and double stage. If you have a trigger in your AR that is not a complete drop-in solution, you need this spring. Use it in conjunction with our Adjustment Grip Screw for an even better trigger using your stock AR15 and AR10 trigger parts.

Application: The Reduced Power Hammer Spring is intended for competition and recreational use only and should not be installed in any rifle used for defense or duty applications. By reducing the spring tension, the introduction of light strikes or failures to fire due to the lack of primer detonation may occur.

International Orders Click HERE
MSRP: $6.95
Our Price: $4.95
Savings: $2.00


Shipping: Usually Ships in 1 to 2 Business Days
Part #: AR15-HAMMER-SPRING
Qty:

Installation Instructions RESTRICTIONS
 
All you need is a punch or hex wrench small enough in diameter to push out the hammer pin located in your AR15 lower. Once you push out the hammer pin, the hammer and spring can be removed from the lower. Take note of the orientation of the spring as it sits on the hammer so that you can install the new spring in the same position. Simply pull the spring off the hammer by grabbing one of the coils and pull. Install the Reduced Power Spring onto the hammer and reinsert the hammer/spring into the lower while pushing the hammer pin back into place through the lower. Be careful not to force the pin as you attempt to push it through the lower. Remember the lower is aluminum and the pin is steel, so forcibly hitting the pin or pushing harshly it may cause damage to your lower if all is not lined up perfectly.
AR15 Reduced Power Hammer Spring Install Instructions

Average Rating: Average Rating: 4.5 of 5 4.5 of 5 Total Reviews: 30 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Excellent upgrade March 20, 2026
Reviewer: AR22 from Barre, VT United States  
Works perfect for AR22 upper

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 good product, great shopping experience January 27, 2026
Reviewer: Zimoehl from Iowa, United States  
Received my items fast, good quality product, seems to do the job well.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Excellent December 31, 2025
Reviewer: Richard Higgins from Boone, IA United States  
Very nice spring. Works.great..shipped fast. Very satisfied

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 A++ October 22, 2025
Reviewer: Blaine from Allen, TX United States  
Quality part, fast shipping

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 They work June 6, 2025
Reviewer: Dave from United States  
Dropped the trigger pull weight by 1 pound

Was this review helpful to you?

View All Customer Reviews