WOLVERINE AIRSOFT REPLACEMENT GRIP LINE WITH INTEGRATED FILTER

Integrated Air Filter • Fre-Thane® Poly Tubing • Barbed Fitting • Direct Drop-In Replacement • INFERNO, HYDRA, REAPER & HAVOC Compatible

WOLVERINE HPA // REPLACEMENT GRIP LINE // INTEGRATED FILTER // FRE-THANE® TUBING // DROP-IN ENGINE COMPONENT

Keep your compatible Wolverine HPA system properly maintained with the Wolverine Airsoft Replacement Grip Line with Integrated Filter, the current replacement grip-line solution designed for multiple popular Wolverine Airsoft HPA engines.

Built with 6mm OD × 4mm ID Fre-Thane® 95A-158 metric polyurethane tubing, an integrated filter, and a barbed fitting, this grip line is designed as a direct drop-in component for compatible Wolverine systems. It replaces the previous Wolverine FGL – Filtered Grip Line design and is now used as the standard grip-line configuration on many Wolverine Airsoft engines.

Whether you’re servicing an INFERNO Gen 2, INFERNO XTS, HYDRA Gen 2, REAPER Gen 2, or HAVOC, this replacement line provides a straightforward factory-style solution for restoring or maintaining the engine’s air connection.

01 // DESIGNED FOR WOLVERINE AIRSOFT HPA SYSTEMS

This isn’t a generic piece of pneumatic tubing.

The Wolverine Replacement Grip Line is specifically designed for use with compatible Wolverine Airsoft HPA products, making it an excellent choice when maintaining a Wolverine-powered airsoft build.

It is listed for compatibility with:

INFERNO Gen 2
INFERNO XTS
HYDRA Gen 2
REAPER Gen 2
HAVOC

Using a purpose-built replacement component helps maintain the correct tubing dimensions and connection style expected by the engine.

02 // INTEGRATED AIR FILTER

One of the most important features is built directly into the grip line: an integrated filter.

HPA engines depend on clean, properly regulated air moving through relatively small pneumatic passages. Contamination entering the system can potentially interfere with normal operation or contribute to unnecessary internal maintenance.

The integrated filter provides an additional level of protection within the air path before air reaches the engine.

Instead of requiring a separate filter assembly, Wolverine incorporates this feature directly into the replacement grip-line system.

This creates a clean and compact solution for compatible HPA builds.

03 // FRE-THANE® 95A-158 POLY TUBING

The line uses Fre-Thane® 95A-158 metric polyurethane tubing.

The specified dimensions are:

6mm Outside Diameter
4mm Inside Diameter
10-inch Length

This type of tubing provides the flexibility needed to route the line through a compatible airsoft rifle grip while maintaining the appropriate dimensions for the system.

Correct tubing size matters with pneumatic equipment, so using the factory-specified configuration helps avoid the uncertainty associated with substituting generic hose.

04 // BARBED FITTING CONNECTION

The replacement grip line includes a barbed fitting.

Barbed fittings provide a straightforward mechanical connection between compatible pneumatic tubing and the appropriate component.

The design helps keep the grip-line assembly compact—particularly important inside an airsoft rifle where space around the pistol grip and engine can be limited.

Always ensure the tubing is correctly seated and inspect the complete connection before supplying pressure to the system.

05 // DIRECT DROP-IN REPLACEMENT

Wolverine designed this component as a direct drop-in replacement for compatible Wolverine Airsoft products.

That makes it useful when an existing grip line becomes:

Damaged
Cut or pinched
Worn
Contaminated
Improperly modified
Missing during a rebuild

Rather than replacing unrelated HPA components, you can service the grip-line assembly itself.

For Wolverine owners who regularly maintain their equipment, it’s also a practical component to keep in a dedicated spare-parts kit.

06 // REPLACES THE PREVIOUS FGL DESIGN

This product has replaced Wolverine’s earlier FGL – Filtered Grip Line.

The newer replacement grip line continues to incorporate filtration while serving as the standard configuration on many current Wolverine Airsoft engines.

This is especially useful for owners researching replacement parts for an older system.

If documentation for your engine references the FGL, this updated component may be the current replacement solution where compatibility is specified.

07 // BUILT FOR HPA MAINTENANCE & REBUILDS

Grip lines are relatively simple components, but they’re essential to the operation of an HPA-powered airsoft rifle.

The line creates the pneumatic connection between the external air source and the internal engine system.

Damage, leaks, incorrect tubing, or poorly seated fittings can prevent an otherwise functional HPA engine from operating correctly.

Having the correct Wolverine replacement line available makes maintenance easier and helps keep your system using components designed around the original engine configuration.

WHY CHOOSE THE WOLVERINE REPLACEMENT GRIP LINE?

✓ INTEGRATED FILTER

Built-in filtration helps protect the compatible HPA system from contamination.

✓ FACTORY WOLVERINE COMPONENT

Designed specifically for compatible Wolverine Airsoft engines.

✓ FRE-THANE® TUBING

Uses specified 95A-158 metric polyurethane tubing.

✓ 6MM OD × 4MM ID

Correctly sized tubing for the intended Wolverine application.

✓ 10-INCH LENGTH

Provides the specified length for compatible grip-line routing.

✓ BARBED FITTING

Compact connection system designed around the Wolverine configuration.

✓ DROP-IN REPLACEMENT

Straightforward replacement for compatible existing grip lines.

✓ MULTIPLE ENGINE COMPATIBILITY

Supports several popular Wolverine HPA platforms.

INSTALLATION NOTE // USE THE CORRECT COUPLING

The supplied installation information notes that the appropriate coupling for 4mm or 6mm hose, depending on your specific setup, is required.

When a threaded coupling is used, Wolverine recommends appropriate thread-locking/sealing compound on the threads to help establish a secure connection.

Use only products suitable for the materials and application involved, and follow Wolverine’s installation instructions for your specific HPA system.

If you’re uncertain about pneumatic fittings or HPA installation, have the component installed by an experienced airsoft HPA technician.

HPA SAFETY // CHECK YOUR SYSTEM BEFORE PRESSURIZING

After replacing any HPA air line, inspect the tubing carefully for cuts, kinks, pinching, loose fittings, or incorrect routing before connecting the air source.

Operate the engine only within the manufacturer-approved pressure range for your specific Wolverine system and regulator.

Never attempt to repair visibly damaged high-pressure components with temporary patches or improvised fittings. Damaged components should be replaced with properly rated parts before the system is used again.

FINAL WORD // FACTORY-STYLE AIR DELIVERY FOR YOUR WOLVERINE HPA BUILD

The Wolverine Airsoft Replacement Grip Line with Integrated Filter is a small but important maintenance component for keeping compatible Wolverine HPA systems properly connected and protected.

With its 6mm OD × 4mm ID Fre-Thane® tubing, integrated filtration, barbed fitting, 10-inch length, and direct drop-in compatibility with INFERNO Gen 2, INFERNO XTS, HYDRA Gen 2, REAPER Gen 2, and HAVOC systems, it’s an ideal replacement for worn or damaged grip-line assemblies.

For Wolverine HPA owners and technicians, keeping one in the spare-parts kit means you’re prepared to service one of the essential pneumatic connections in your build.

WOLVERINE AIRSOFT // HPA GRIP LINE // INTEGRATED FILTER // FRE-THANE® // INFERNO + HYDRA + REAPER + HAVOC