American Air Arms HPS Series – Is This The Most Accurate Airgun?

Offered Exclusively by Airgun West, the American Air Arms Stalker, Raptor, and Apex

The American Air Arms HPS platform, proudly designed and manufactured in the USA, is a ground-up reinvention of how a high-performance airgun should work—designed, machined, and tested by one American builder with aerospace-level thinking. This is a compact airgun with competition-grade precision, hunting power, and an architecture no other company in the world is using.

What Makes The American Air Arms HPS Airgun Different?

Traditional PCP airguns have always chased power the same way—by hitting the valve harder. As pressure increases, the valve becomes harder to open, so the industry answer has been to add bigger hammers, stronger springs, and more tuning parts to force the system to cooperate. That approach can work, but it brings tradeoffs: wasted air, extra noise, mechanical stress, and a platform that needs constant adjustment. At some point, the design begins to fight itself.

The HPS Pressure Timed System takes a completely different approach. Instead of using force to overpower pressure, it uses pressure as the control mechanism. The hammer only starts the process, and from that moment on, the system decides how long the valve stays open. Dwell time is set by pressure behavior rather than impact energy, which turns the airgun from a brute mechanical device into a predictable, self managing system.

In a legacy hammer gun, performance is tied to how violently the valve is struck, so higher power always demands heavier parts and more complicated tuning. In the HPS, pressure governs duration, creating repeatable output with fewer components, less wear, and almost no tuning drift. The result is a rifle that stays consistent by design rather than by constant adjustment.

That is the leap. The HPS doesn’t stack fixes on top of an old idea—it changes the idea itself, replacing force with control and complexity with simplicity. The accuracy and efficiency you feel are not the product of more parts, but of a smarter architecture.

Meet The American Air Arms HPS Models From Airgun West

American Air Arms HPS Stalker

he American Air Arms HPS Stalker is the model turning heads:

• 12" barrel
• 90 FPE in .30 caliber
• 5 lbs without scope
• titanium air cylinder
• in-house fluted barrel
• match 2-stage trigger (4–8 oz)
• 4500 psi rated with integrated burst disc
• external reg + external valve adjust

This is a true compact airgun that delivers magnum rifle performance without magnum rifle size.

Learn More

American Air Arms HPS Raptor

A hybrid between field rifle and match gun—designed for shooters who want competition precision with real-world handling.

Best for:
• PRS style matches
• hunting
• mixed pellet & slug use

Learn More

American Air Arms HPS Raptor airgun made in the USA – Airgun West

American Air Arms HPS Apex

HPS Apex – The Competition Airgun

Built for benchrest and precision slug shooting. The Apex is the platform for shooters chasing one-hole groups and extreme consistency at distance.

Best for:
• competition airgun performance
• long-range slug accuracy
• precision bench shooting

Learn More

Who is the American Air Arms HPS Airgun For?

The HPS is built for shooters who care about how a tool works, not just what the spec sheet claims. It’s for people who want an airgun made in the USA, designed around real engineering rather than copied ideas, and who value accuracy with slugs as much as raw power numbers. If you’ve been searching for a lightweight, compact rifle with a true competition-grade trigger and performance that doesn’t require constant tuning, this platform was made for you. The HPS rewards shooters who appreciate innovation that simplifies a system instead of burying it under more parts.

It isn’t meant for someone shopping by price alone, or for those who expect a mass-produced, off-the-shelf PCP experience. This is not another generic platform with a different logo—it’s a purpose-built instrument created by one American builder to solve problems most airguns still work around.

At its core, the HPS is a tool for shooters who choose engineering over marketing and design over trends.