• Rival Apollo 4.25" K26 (Hand cut, one end squared)
  • Rival Apollo 4.25" K26 (Hand cut, one end squared)
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Rival Hypnos Spring (123FPS)

Rival Hypnos Spring (123FPS)

$5.00 USD
$5.00 USD
Sale Sold out

PRODUCT DESCRIPTION:
This precut Rival Hypnos spring is cut from a K26 and has been tested to match your blaster. This mod is not for young kids! You'll need fairly strong hands to prime this spring. This spring has been custom cut and tested to fit the Hypnos blaster.

FEATURES:
• Medium to Hard on installation difficulty
• One end will be flat/squared, the other will be a raw cut.
• 123+ FPS

SPECS:
• Cut-to-Length Compression Spring,
• Material: Made in the USA of USA spring-tempered steel
• Dimensions: 15 coils, hand cut, flat on one end

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Customer Reviews

Based on 2 reviews
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J
Jay H.
OoD Hypnos Upgrade Spring

The Out of Darts team always nails it with the spring upgrades. While the hypnos is a bit tricky to get inside, the extra boost in fps makes it worth it.
And of course, they are always a pleasure to do business with. Great product packing, and excellent customer support.

R
Robert
Fantastic Upgrade

Order the spring and installed into my Hypnos. It was a pain to reassemble the Hypnos, but worth the frustration.
Fantastic upgrade from the stock spring and only a slight increase to the effort in cocking the spring.
Already suggested it to a few friends.