Last updated July 27, 2026 · By Nick Hall. Part of our complete air rifle guide.
The FX Impact M3 is the airgun enthusiast’s endgame rifle. This Swedish-built PCP bullpup is the most adjustable, most configurable production air rifle made, with tool-less control over power, regulation, and even barrel and caliber. It is expensive and complex, but nothing else offers this much capability. Here is the honest verdict.
FX Impact M3 Specifications
| Type | Regulated PCP bullpup |
| Calibers | .177 to .30+ (interchangeable barrels) |
| Adjustability | Tool-less power, reg, valve, hammer, transfer port |
| Barrel system | Superior STX Heavy Liner, swappable calibers |
| Accuracy | Match-grade; a competition and long-range favorite |
| Made in | Sweden |
| Street price | ~$2,000+ |
The Most Configurable Airgun Made
The Impact’s whole identity is adjustability. Almost everything that affects the shot, macro and micro power adjusters, the regulator, the valve, the hammer spring, and the transfer port, is tunable, much of it without tools, so you can precisely tailor velocity and efficiency to any pellet or slug. The STX liner system lets you swap barrels and even calibers, turning one rifle into many. The result is match-grade accuracy across an enormous power range, which is why the Impact dominates airgun benchrest, field target, and long-range slug shooting. For the shooter who wants one rifle that can be anything, it is the platform.
How It Shoots
The Impact M3 is stunningly accurate and endlessly capable, and its tune-ability means a knowledgeable owner can wring out performance no fixed rifle can match. That flexibility is also its main caveat: there is a lot to learn, and it is entirely possible to get lost adjusting knobs and lose a good tune. It is a rifle that rewards study, not a grab-and-go gun. The bullpup layout is compact but the ergonomics divide opinion, and of course the price is steep. But for a serious airgunner who will invest the time, the Impact delivers a ceiling nothing else reaches.
Where to Buy the FX Impact M3
FX Impact M3 From ~$2,000
The Verdict
The FX Impact M3 is the best high-end PCP air rifle you can buy and the benchmark for adjustability and accuracy. It costs as much as a nice firearm and demands that you learn its many adjustments, but for a dedicated airgunner it is a buy-once rifle that can be tuned for anything from field target to long-range slugs. If you want the ceiling of airgun performance, this is it. See the full field in our best PCP air rifles guide.
Our Rating: 9 / 10 — the most capable, adjustable, and accurate production airgun, at a premium price.
FX Impact M3 FAQ
Is the FX Impact M3 worth the money?
For a dedicated airgun enthusiast, yes. The FX Impact M3 is the most adjustable and accurate production air rifle made, and it can be tuned and re-barreled to be almost anything. It is expensive and complex, but it is a genuine buy-once, do-everything rifle.
What makes the FX Impact so adjustable?
Almost every variable that affects the shot, macro and micro power adjusters, the regulator, the valve, the hammer spring and the transfer port, is tunable, much of it tool-lessly. The STX liner system also lets you swap barrels and calibers.
What calibers does the FX Impact M3 come in?
The FX Impact M3 covers .177 through .30 and larger, and its interchangeable barrel liner system lets one rifle switch between calibers, which is a major part of its appeal.
Is the FX Impact hard to use?
It has a learning curve. The huge range of adjustments rewards study and can overwhelm a new owner, and it is possible to lose a good tune by over-adjusting. It is a rifle for enthusiasts willing to learn it, not a grab-and-go gun.
Is the FX Impact M3 accurate?
Exceptionally. It is a benchmark in airgun benchrest, field target, and long-range slug shooting, delivering match-grade accuracy across a very wide power range when properly tuned.
How much does the FX Impact M3 cost?
Street prices for the FX Impact M3 typically start around $2,000 and rise with configuration, putting it firmly in premium, enthusiast territory.
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