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Prometheus Non-Liner Airsoft AEG Upgrade Spring (M135 / 430~530 FPS)

ID: 32454 (Spr-Prom-M135)
Prometheus / Laylax859188324541458210958033232454
4.2 stars, based on 5 reviews
Prometheus Non-Liner Airsoft AEG Upgrade Spring (M135 / 430~530 FPS)
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Prometheus / Laylax



  • Steel construction
  • Easy to install part to increase your stock FPS
Compatibility: For Tokyo Marui, Matrix and other compatible Airsoft Gearboxes
Material: Steel

Manufacturer: Prometheus

About Prometheus / Laylax

Providing products in the Japanese market for the better part of 20 years, Laylax is well known for their high manufacturing quality and precise tolerances. Their tried and true parts and accessories have led them to be the leader in Japanese airsoft engineering.

5 Customer Reviews

(Write a review)

by Anthony C. on 12/23/2018
"Could I put this in my Matrix M4?
by Felipe E. on 11/08/2018
"Threw it in my KWA RM4a1 and it upped the fps from 380 to 425 with .20's and 332 fps with .32's right around 1.52/55 jouls. My gun is compressionly sound so yeah I recommend it it works great.
by jacob p. on 02/08/2014
"very good spring! with a JG blue motor and a hefty 9.6 you can run it fine. (with a sorbo and upgraded gears. im running SHS) if you want a higher FPS this is the spring!!!!!!!!!!!!!!!!!

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