Hammer Spring
Hammer Spring
None
MadeInUsa OFF

WOLFF - Hammer Spring

32 Reviews
Quantity
Hammer Spring
Brownells #
969000100
MFR #
30093
UPC
$9.99
Coupon Code
Purchase Limit Help

Out of Stock

NOTIFY ME WHEN IT'S BACK IN STOCK
Shipping Estimated Delivery
Estimated delivery:
Can we ship this to you? (US only)
{{restriction.odmShipCheckMessage}}

How To Buy Guns Online

International purchase information

Specifications
Make Model Fit:
AR-15.Universal
Quantity:
1
Restriction
Gun Part Restrictions:
Yes
View US State Restrictions
Can we ship this to you? (US only)
{{restriction.odmShipCheckMessage}}

How To Buy Guns Online

International purchase information

What is the WOLFF - Hammer Spring?

Durable, steel springs provide extra hammer power to ensure proper ignition with each trigger pull. Replaces factory spring.

Note: For use in semi-auto models only. Not for use in full auto or burst fire models.


SPECS: Steel. Approximately 23/32" (18.2mm) wide, 2" (5.1cm) long.


See all of our AR15s and AR15 parts here.

Gun Part Restriction
Gun Parts have restricted shipping to CA.

Please select a FFL Dealer
Dealers near
Nearest first
arrow-down

Enter dealer or account folder information

* Required fields

MANUALLY ENTERED

Note: Hours and fees may change. Contact the dealer to confirm current information.

* Must accept required fields.

pin wrong
No dealers found

Please search by another zip code or city and state to find the nearest dealer.

  • Pin in Brownells Featured Dealers

    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

  • Pin in Standard Dealers

    Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.

  • Pin in Not Available Dealers

    Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

Brownells Retail Store
Phone Call
Quickest, Hassle-Free Transfer
Pin in
Phone
Accepts ammo transfers Accepts NFA transfers
You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.
* Must accept required fields.
dealers near

Alternative products

Left Badge
Right Badge OFF  
5 Stars

200

300

Add on

Left Badge
Right Badge OFF  
5 Stars

200

300

AR-15/M16 EXTRA-POWER HAMMER SPRING REVIEWS

4.7
32 Reviews
5 Stars
88%
4 Stars
3%
3 Stars
6%
2 Stars
0%
1 Stars
3%
Reviews Summary
Customers are extremely satisfied with the AR-15/M16 Extra-Power Hammer Spring, frequently praising its effectiveness in resolving common cycling issues and light primer strikes. Reviewers note easy installation and significant improvements in reliability and accuracy, making it a recommended upgrade for all AR users.
What Reviewers Are Saying
Problem Resolution
70%
Many reviewers highlight how the hammer spring effectively solved issues such as jamming and light primer strikes. It noticeably improved cycling reliability across various ammunition types, making it a popular choice for users experiencing firing issues.
Ease of Installation
60%
Reviewers consistently mention that the hammer spring is easy to install. This simplicity makes it an attractive upgrade for both novice and experienced users who want to enhance their AR-15's performance without complications.
Performance Improvement
50%
Numerous reviewers report significant enhancements in accuracy and overall performance after installing the spring. They note that it effectively reduces misfires and contributes to improved shooting consistency, especially with harder primers.
5
A must have for BRN-180 G 3
my 180 Gen 3 was not cyling properly after the 1st round and would jam, missfire, and not even load. This spring cured it.
by PABLO C. on June 27, 2026
Verified Purchase
Was this review helpful? 0
5
Oh boy! This did the trick!
I've been having isdues with a 22 magnim gas gun. I have be getting intermittent fail to fire. After trying several cartridge triggers and a mil-spec, i went back to mil-spec. Still was having isdues with JP Enterprises enhanced springs. I have these from Wolf Springs. No more fails to fire. (Side note: I've been using Wolf Springs for years in my rifles and handguns)
by GEORGE W. on March 29, 2024
Verified Purchase
Was this review helpful? 1
5
EXACTLY WHAT I NEEDED
I bought a dedicated .22 WMR AR upper receiver. My lower was standard GI Mil-Spec parts (nothing reduced power rayed) but I got +80% light primer hits with CCI Maxi-Mags. The Wolff extra power hammer spring was recommended to remedy the problem. I installed the new spring and was very happily surprised with 100% reliability. We found the exact same problem with my son's AR 22 LR upper, light hits on CCI Mini-Mags. The Wolff spring gave him 100% ignition reliability too.
by WILLIAM H. on November 09, 2023
Verified Purchase
Was this review helpful? 1
5
Perfect for rimfire
Picked up a couple of these and put them in the lowers I use with my 22lr dedicated upper. Was click no bang 50% with the milspec spring since installing 100% with good ammo. Nothing stet of "golden bullets" all the time.
by Mindgamez on August 10, 2023
Verified Purchase
Was this review helpful? 0
5
Works Great on Mil-Spec Trigger/Lower with a 7.62x39mm Upper
Over the years some alternate calibers and AR15’s don't have a strong enough hammer spring causing light strikes on the primers. it seems like 7.62x39mm is a great example of that this hammer spring being extra power XP helps to eliminate that issue as long as the trigger is a mil-spec trigger assembly, such an easy part swap and it does fix the issue.
by GB on February 15, 2023
Was this review helpful? 6
View All 32 Reviews
Customer Questions
0 Questions