Modify - Tapered Hop-Up Spring

Author // Ronald “SlickAxe” Meeuwissen Categories // Manufacturers

What causes AEGs low FPS issues?

Modify - Tapered Hop-Up Spring

There are lots of variables causing AEGs low FPS issues. The air seal is a key point! The hop-up spring, though small, accomplishes big as it can pushes the hop up chamber back into the air nozzle to reach a good air seal. When the hop up spring is not strong enough or too short, or you lost it when you rebuild your AEGs, the hop up unit would moves back and forth, so it doesn’t always line up with the magazine, with the hop up moving it may cause loss of air seal, causing lower muzzle velocity.

The Modify XTC‐G1 is used with a tapered spring for the hop up, which puts tension against the hop up and air nozzle to eliminate any play/wobble that may affect accuracy. It allows the hop up unit together with the inner barrel always line up with the magazine and gearbox, and further reach a good air seal. But be aware of its installing direction. If we install the spring the wrong way, the hop up unit would moves back and forth a little bit, so it couldn’t reach its purpose. Another nifty feature of the XTC-G1 to accomplish more performance and consistancy.

XTC hop up spring 1

About the Author


Ronald “SlickAxe” Meeuwissen

Owner of NLAIRSOFT.COM and since 2002 |  Co-Founder and former boardmember of the Dutch Airsoft Association NABV since 2004 | Into #airsoft since 2001

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