Rapax 3J+ Airsoft Sniper Spring

High-Power Sniper Spring for TAC-41, SRS, SSG10 & More

The Rapax 3J+ Airsoft Sniper Spring is a high-performance upgrade for powerful airsoft sniper builds, delivering increased FPS and Joule output while maintaining a smoother, easier bolt pull compared with conventional high-power springs.

Designed for popular platforms including the Silverback TAC-41, Silverback SRS, Novritsch SSG10, SSG24, SSG96 and Modify Scout, the Rapax 3J+ is an excellent choice for heavily upgraded sniper rifles requiring serious spring power and dependable long-term performance.

Why Choose the Rapax 3J+ Sniper Spring?

• High-power 3J+ airsoft sniper spring
• Easier bolt pull compared with conventional high-power springs
• Compatible with popular sniper rifle platforms
• Designed for use with 9mm spring guides
• Suitable for aftermarket heavyweight pistons
• Reduced spring "twang" for quieter operation
• Premium European construction
• Designed for 10,000+ shots without significant power loss
• Can be trimmed for lower power output

Power & Performance

When correctly set up and tested with heavyweight BBs, typical performance is:

• Approx. 2.8J with a 300mm G-Spec barrel
• Approx. 3.4J with a standard 16-inch / 420mm barrel
• Up to approximately 4J with longer barrel configurations
• Under 500 FPS with 0.20g BBs with a 300mm G-Spec barrel
• Over 520 FPS with 0.20g BBs with a standard 16-inch / 420mm barrel

Actual FPS and Joule output will vary depending on barrel length, piston weight, air seal, hop-up setting and overall rifle configuration.

Compatible Airsoft Sniper Rifles

The Rapax 3J+ spring is suitable for popular sniper platforms including:

• Silverback TAC-41
• Silverback SRS
• Novritsch SSG10
• Novritsch SSG24
• Novritsch SSG96
• Modify Scout
• Other compatible airsoft sniper rifles using a 9mm spring guide

It is also compatible with aftermarket heavy pistons including:

• Stalker Scorpion
• W.A.S.P.
• EDGI

This makes it a strong upgrade option for high-powered TAC-41 upgrades, SRS upgrades, SSG10 upgrades and custom airsoft sniper builds.

Easier Bolt Pull, Higher Power

High-powered sniper springs can make bolt operation increasingly difficult. The Rapax 3J+ is designed to deliver substantial power while maintaining a comparatively smooth and manageable bolt pull.

The spring also helps reduce the characteristic metallic "twang" associated with powerful airsoft sniper springs.

Built for Long-Term Performance

Rapax springs are handmade in Europe from premium-quality spring wire and undergo an advanced tempering process for increased durability and power retention.

The Rapax 3J+ is designed to withstand more than 10,000 shots without significant power loss, making it suitable for demanding high-performance sniper builds.

Installation & Tuning

For the best results:

• Set your hop-up using the heavyweight BBs you intend to use
• Chronograph with your hop correctly adjusted
• Apply suitable lithium or thick grease to the spring and spring guide
• Chronograph after installation and after any adjustment

If lower power is required, the Rapax 3J+ spring coils can be carefully trimmed to reduce output. Make adjustments gradually and test the rifle after each modification.

Important Power Information

The Rapax 3J+ is a high-power spring capable of producing energy substantially above typical UK airsoft site limits.

Depending on the rifle configuration, output can reach approximately 4 Joules. Always chronograph the completed rifle and ensure its muzzle energy complies with applicable legal requirements and your airsoft site's limits before use.

For high-performance Silverback TAC-41, SRS, Novritsch SSG10 and other compatible airsoft sniper rifles, the Rapax 3J+ combines serious power potential, easier bolt operation and proven durability in one premium upgrade spring.