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Angel Custom Tunable Spring Guide for Cybergun FNX45 Airsoft Gas Blowback Pistols

ID: 78524 (Part-AC-RG-FNX45)
Angel Custom859188785243AC-RG-FNX4578524
3.0 stars, based on 2 reviews
Angel Custom Tunable  Spring Guide for Cybergun FNX45 Airsoft Gas Blowback Pistols
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Angel Custom

$28.00 $18.00


  • Stainless steel guide rod
  • Tunable 130% increase recoil spring allows for custom tuning of your pistols recoil
  • Enhanced hammer spring provides more reliable firing as well as improved performance
  • Drop in upgrade components
  • Manufactured to factory sizing specs
Compatibility: Cybergun / VFC FNX45 GBB Airsoft pistols
Material: SUS303 Stainless Steel

Manufacturer: Angel Custom

About Angel Custom

Angel Custom was founded on a mission to promote satisfaction and excitement on the Airsoft battlefield. Founded by Airsofters searching for perfections, it is our joy and pride to present you our battle tested creations. We strive to provide quality products and services that are reliable and trustworthy to be worthy of the trust placed in us.

2 Customer Reviews

(Write a review)

by Ruben A. on 10/21/2019
"The spring guide drops in quite nicely but it does not have the little dimple where the slide lock is gonna fit. Still works fine, but it is not 100% fitment.
Otherwise it makes the slide super snappy!

The hammer spring was a bi*** to install but here`s a tip:
Only losen the spring and after installation, pry it back into place with some pliers. They don`t sell all the other parts that you are gonna destroy opening the whole case.
Or: just dont replace it..

But the spring guide is a go 👍
by Bill G. on 12/28/2019
"This review focuses mainly on the guide rod.
For starters, the build quality on this thing is excellent, with a nicely tensioned spring and clean machining. It's also very strong when you can get it to work, which is about where the praise for this ends. This guide rod fundamentally failed to do what I had purchased it for, which was for a 130% guide rod, as with all the spacers in to make it that percentage, the spring doesn't give the slide enough travel room enough to catch on the slide lock, only going about half way across the catch. It doesn't work at all until you remove all the spacers via the unscrewing of a tiny Allen screw under the spacers on the rod. After installation, the round bit that interfaces with the hop up unit is a bit too big, which causes the take down lever to slightly angle upwards when the slide locks back do to it rubbing against it.
Build Quality

Literally doesn't work as advertised
Pain to adjust
Built too large to fit oem

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