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Hammer Spring
Hammer Spring
Hammer Spring, 3-Pak
Hammer Spring, 3-Pak
Hammer Spring, 10-Pak
Hammer Spring
Hammer Spring
Hammer Spring, 3-Pak
Hammer Spring, 3-Pak
Hammer Spring, 10-Pak
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WOLFF - AR-15/M16 EXTRA-POWER HAMMER SPRING

32 Reviews
Quantity
Brownells #
969000100, 969000101, 969000102
MFR #
30093, 30094, 30095
UPC
$9.99 - $37.49
Coupon Code
Purchase Limit Help

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What is the WOLFF - AR-15/M16 EXTRA-POWER 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.

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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
The Wolff extra-power hammer spring has received overwhelmingly positive feedback for its effectiveness in eliminating failure to fire issues across various AR platforms, especially with hard primer ammunition. Customers appreciate its reliability and ease of installation, although some note the increased trigger pull weight. Overall, it's a recommended upgrade for consistent ignition.
What Reviewers Are Saying
Reliability
90%
Many reviewers highlight the Wolff hammer spring's effectiveness in improving reliability, particularly with certain types of ammunition that have hard primers. Users reported instances of light strikes being resolved completely after installation, making this product highly regarded for ensuring consistent firing across different AR setups.
Ease of Installation
75%
The spring is praised for being easy to install, often compared to installing a standard mil-spec hammer spring. Several reviews indicate that it drops in easily without the need for special tools, which adds to user satisfaction and recommendation levels.
Increased Trigger Pull Weight
60%
Some customers note a noticeable increase in trigger pull weight after installing the heavier spring. While this may benefit reliability, it has led to mixed feelings among users who prefer lighter triggers for sensitivity. This aspect is especially highlighted by those using the spring in competitive shooting contexts.
Compatibility and Versatility
85%
Reviewers have used the spring across various AR platforms and calibers, including .22LR, 7.62x39, and .50BMG, indicating its versatility. Many emphasize that it resolves issues with different brands of ammunition, making it a go-to recommendation for others building or upgrading their firearms.
Value for Money
70%
Customers consider the Wolff spring a cost-effective solution to persistent firing issues, praising its reasonable price for the performance improvement it delivers. Many believe that investing in this product is worthwhile for anyone experiencing ignition problems, making it a solid investment in functionality.
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 CLEMENA on June 27, 2026
Verified Purchase
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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 WILLIAMSON 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 HARDT 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
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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? 5
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