Nerf mod K25 Spring 3.7" 120-125FPS Average (Easy-Prime) - Out of Darts
Nerf mod K25 Spring 3.7" 120-125FPS Average (Easy-Prime) - Out of Darts
NEW! Kronos 3.7" K25 Spring hand cut (easier prime) 120-125FPS average
NEW! Kronos 3.7" K25 Spring hand cut (easier prime) 120-125FPS average
Nerf mod K25 Spring 3.7" 120-125FPS Average (Easy-Prime) - Out of Darts
Nerf mod K25 Spring 3.7" 120-125FPS Average (Easy-Prime) - Out of Darts
Nerf mod K25 Spring 3.7" 120-125FPS Average (Easy-Prime) - Out of Darts

Rival Kronos Spring (120-125FPS+) Easy-Prime

Regular price $5.00 Sale

PRODUCT DESCRIPTION:
This is a hand-cut K25 spring for the Nerf Rival Kronos, Mercury, Jupiter, and Adventure Force Sentry X2.  Offering 120-125FPS average that is legal for most games, the new Kronos Spring (Easy-Prime) offers a simple installation.  The Kronos (Easy-Prime) is more suitable for a child's hand strength in comparison to our Kronos (Strong-Prime) that requires a stronger grip.

 
FEATURES:
• Lighter weight prime than a K26 variant
• 120-125FPS average (HvZ legal for most games)
 One end squared, the other end hand cut

SPECS:
• Cut-to-Length Compression Spring,
• Material: Made in the USA of USA spring-tempered steel
• Dimensions: 95mm long / 3.5in long, hand-cut, flat on one end

ADDITIONAL LINKS:
 Kronos (Strong-Prime) Spring

VIDEOS:


Customer Reviews

Based on 21 reviews
86%
(18)
10%
(2)
0%
(0)
5%
(1)
0%
(0)
S
Scott H.
Great spring (a little strong)

This spring is great and powerful I am 15 and if I have the slightest bit of moisture on my hand it is hard to prime. I can do it but it is hard. I would recommend a 3D printed T pull for the Kronos with this upgrade spring in the gun. Otherwise great product.

A
Anonymous
Yep it’s a spring

It’s a good k26 spring for a Kronos does exactly what you expect

B
Brandon C.
More than offered

120-125. Nope I’m getting 140 using the same Chronograph. It pops. Prime is stronger but not bad with grip tape. The fun of the shot is incredible!

M
Matthew B.
Not-So-Easy Prime

I bought this spring thinking it was going to give my Kronos a good 20 FPS boost without making the prime weight overly difficult. In short, I was wrong. The Kronos will definitely hit 120 FPS with this spring but the prime weight is so heavy that I really had to struggle to even prime it once, and I'm a full grown man. Unless you're a weight lifter with biceps of steel I'd recommend sticking with the stock 100 fps Kronos spring.

J
James B.

Great Spring! Fires like a cannon