PolarStar MR “MicroReg Gen 2” Micro Regulator Air Rig (Package: Regulator + Airline)

Compact. Reliable. Tournament Ready. Precision Air Control for Serious HPA Players.

The PolarStar MR “MicroReg Gen 2” Micro Regulator Air Rig is the next evolution in HPA air regulation, combining exceptional performance with a streamlined, ultra-compact design. Proudly made in the USA, the Gen 2 MicroReg is engineered for players who demand fast regulator response, consistent pressure output, simplified maintenance, and unmatched reliability on the airsoft field.

Whether you’re running a PolarStar F2, JACK, Kythera, Fusion Engine, Wolverine INFERNO, or another HPA system, the MicroReg Gen 2 delivers incredibly stable air pressure for improved shot consistency and dependable performance throughout every game.

This complete package includes both the PolarStar MR Gen 2 Regulator and a high-quality braided airline, providing everything needed to complete or upgrade your HPA air rig.

From competitive speedsoft to demanding MilSim operations, the PolarStar MR Gen 2 is trusted by players worldwide who refuse to compromise on performance.

Engineered for Maximum Consistency

Every HPA engine depends on one critical component—the regulator.

The PolarStar MR Gen 2 is designed to deliver an incredibly stable output pressure, ensuring every shot receives the same regulated airflow.

Benefits include:

• Consistent FPS
• Improved shot-to-shot accuracy
• Better air efficiency
• Stable pressure under rapid fire
• Reliable performance in demanding conditions

A quality regulator is one of the biggest contributors to overall HPA consistency, and the MR Gen 2 is built specifically for that purpose.

Ultra-Compact Low Profile Design

One of the defining characteristics of the MicroReg Gen 2 is its incredibly compact footprint.

Standing less than 2.25 inches tall, the regulator is smaller than many traditional Universal Fill Adapters (UFAs), making your entire HPA setup lighter, cleaner, and easier to maneuver.

Advantages include:

• Reduced overall bulk
• Lower profile tank setup
• Improved mobility
• Cleaner loadout appearance
• Better compatibility with backpacks and plate carriers

Its compact size makes it an excellent choice for both speedsoft and MilSim players.

Wide Adjustable Pressure Range

The standard configuration allows output pressure adjustment from:

40 PSI to 130 PSI

This broad adjustment range makes the regulator compatible with a wide variety of HPA engines and rifle builds.

Perfect for tuning:

• CQB rifles
• Outdoor rifles
• DMR platforms
• Precision builds
• High-performance custom setups

Always adjust your regulator to comply with your local field’s FPS or Joule limits.

Simplified Gen 2 Internal Design

While performance remains every bit as impressive as the original MicroReg, the Gen 2 redesign focuses on simplifying manufacturing and maintenance.

PolarStar redesigned the regulator body to utilize the same piston found in their UGS and CGS systems, reducing the number of unique internal components across product lines.

The result is:

• Fewer internal parts
• Easier maintenance
• Improved manufacturing consistency
• Faster servicing
• Greater long-term reliability

Perhaps most importantly, the Gen 2 now uses only two primary O-rings, making servicing significantly easier than previous generations.

Extremely Reliable Design

Simplicity equals reliability.

With only a minimal number of internal sealing surfaces, the MicroReg Gen 2 offers:

• Reduced maintenance
• Fewer wear points
• Lower chance of leaks
• Easy rebuilds
• Long service life

For players who rely on their HPA system every weekend, dependable performance matters.

Fast Regulator Response

The redesigned piston reduces internal drag by eliminating the previous center O-ring.

Although the pressure range remains unchanged, this reduction in friction allows the regulator to respond slightly faster during rapid firing.

The improvement may be subtle, but every refinement contributes to smoother overall operation and outstanding consistency.

Integrated Tournament Lock

Many fields require regulators to be locked after chronographing.

The PolarStar MR Gen 2 includes an integrated Tournament Lock that utilizes a standard zip tie.

No additional hardware.

No moving parts.

Simply install a zip tie once your regulator is set, satisfying many field tournament requirements.

Premium Braided Airline Included

This package includes a high-quality braided HPA airline, providing:

• Excellent durability
• Flexible routing
• Reduced kinking
• Professional appearance
• Reliable air delivery

It’s an excellent upgrade over many standard air lines while offering dependable long-term performance.

Modular Design

PolarStar designed the MR platform with modularity in mind.

Future configurations and accessories allow for different pressure and output arrangements, giving players greater flexibility as their HPA setup evolves.

Made in the USA

Every PolarStar MR Gen 2 regulator is proudly manufactured in the United States, reflecting PolarStar’s commitment to premium engineering, precision machining, and uncompromising quality.

Key Features

• Official PolarStar MR “MicroReg Gen 2”
• Includes regulator and braided airline
• Compact low-profile design (under 2.25″)
• Adjustable output pressure: 40–130 PSI
• Simplified two O-ring internal design
• Improved reliability
• Easy maintenance
• Modular regulator platform
• Fast pressure response
• Integrated tournament lock
• Compatible with standard zip ties
• High-quality braided airline included
• Made in the USA
• Compatible with most popular HPA airsoft systems

Why Choose the PolarStar MR Gen 2?

When building a reliable HPA system, your regulator is one of the most important components.

The PolarStar MR Gen 2 combines compact dimensions, excellent pressure consistency, simplified maintenance, and proven reliability into one premium package trusted by HPA players around the world.

Whether you’re upgrading your first HPA setup or replacing an older regulator, the MR Gen 2 delivers the precision, consistency, and durability needed for years of dependable performance.

Frequently Asked Questions

What is the PolarStar MR Gen 2 used for?

The MR Gen 2 regulates air pressure from your HPA tank before delivering it to your airsoft rifle, providing stable and consistent operating pressure for HPA engines.

What pressure range does it support?

The standard configuration adjusts from 40 PSI to 130 PSI, making it suitable for a wide range of HPA-powered airsoft rifles and engines.

What’s included in this package?

This package includes:

• PolarStar MR Gen 2 Micro Regulator
• Premium braided HPA airline

Everything needed to upgrade your existing HPA air rig.

What changed from the Gen 1 version?

The Gen 2 redesign focuses on simplifying manufacturing and maintenance by using the same piston as PolarStar’s UGS and CGS systems. It also reduces the regulator to only two primary O-rings, making servicing easier while maintaining the same excellent performance.

Is the Gen 2 more responsive?

Yes. By reducing internal friction through the simplified piston design, the regulator offers slightly quicker response times, although overall operating pressure and performance remain consistent with the original design.

What is the Tournament Lock?

The built-in Tournament Lock allows players to secure the regulator using a standard zip tie after chronographing, helping satisfy many field tournament requirements without additional accessories.

Is this compatible with PolarStar HPA engines?

Absolutely. The MR Gen 2 is an excellent choice for PolarStar JACK, F2, Fusion Engine, Kythera, and many other HPA systems. It is also compatible with numerous HPA platforms from other manufacturers that use standard airsoft HPA connections.

Why choose the MicroReg over larger regulators?

Its compact size, reliable pressure regulation, simplified maintenance, integrated tournament lock, and lightweight design make it one of the most popular premium HPA regulators for players who want maximum performance without unnecessary bulk.

The PolarStar MR “MicroReg Gen 2” Micro Regulator Air Rig delivers everything serious HPA players demand—compact dimensions, outstanding pressure consistency, simplified maintenance, tournament-ready features, and American-made quality. Complete with a premium braided airline and an adjustable 40–130 PSI output range, it’s the perfect regulator upgrade for players seeking dependable performance on every shot.