Gamo Whisper Fusion Mach 1 Review

Since Gamo designed the Mach 1 rifle to set the bar for silent hunting and pinpoint accuracy, it’s no surprise that the Gamo Whisper Fusion Mach 1 air rifle is the best of its kind. Equipped with a 3-9×40 scope, it is a hunter’s best friend in terms of stealth and accuracy. Some of Gamo’s most cutting-edge innovations are brought together in the company’s Whisper Fusion Mach 1 air gun. 

The IGT Mach 1 power plant provides greater velocity and terminal strength, while the Whisper Fusion double-integrated noise dampener decreases noise by 89.5%. The Whisper Fusion sound moderator is integrated into the Gamo Whisper Fusion Mach 1 and works by routing pellets through two separate chambers.

This works together to compress and inhibit noise expansion. This is one of the most powerful break barrel rifles Gamo has produced thanks to the technologies they employ during production. It is useful for everything from pest control to target practice.


  • Break barrel 
  • Single-shot
  • Up to 1420 feet per second with PBA in .177 calibre 
  • Bullets made of platinum
  • Front sight fibre optics that are permanently mounted
  • Rear sight fibre optics with infinite adjustment
  • Rail for 11mm spotting scopes
  • SWA (Shock Wave Absorber) recoil cushion for barrel-jacketed polymer firearms reduces felt recoil by up to 74%.
  • Black rubberized grip and forearm inserts on the weatherproof, ambidextrous stock
  • The locking mechanism that activates automatically for safety
  • Mechanical security
  • Decreases Recoil in addition to compensating for recoil 99.9 per cent of the time, the rail also helps the scope last as long as possible.
  • Incorporates a 3-9×40 scope



Whisper Fusion Mach 1 Air Rifle Details

Trigger and Cocking Effort

The SAT (Smooth Action Trigger) trigger by Gamo is installed on the Whisper Fusion Pro. In my testing, this trigger had an average draw weight of 3 pounds, 6 ounces. The trigger is extremely great for a hunting rifle. It snaps apart in a neat little piece, like an antique light switch.

I think this is a nice trigger for a spring/piston air rifle of its price and power. It’s combined with manual safety that’s at a good spot right in front of the trigger blade. No unpleasant scraping sounds or rough sensations were experienced during cocking. A cocking effort of 56 lb measured by me, came as a big surprise. When compared to the Whisper Fusion Pro’s muzzle velocity and power, it didn’t feel too cumbersome to cock.


When I tested the reliability of the Gamo Whisper Fusion Mach 1, it performed admirably. With an overall average of 6.72 FPS, the Standard Deviation (a measurement of variability for muzzle velocity) was very well controlled throughout the entire test. This is a consistently high muzzle velocity for a spring- or piston-operated air rifle. Standard Deviation decreased to 4 FPS or less using JSB Exacts, but even more impressive results were obtained using extremely lightweight alloy pellets.

The Gamo Whisper Fusion Pro’s low standard deviations of roughly 9 FPS for the Gamo Raptor Platinum and H&N Field Target Trophy Green pellets are impressive. This uniformity persisted in the high precision achieved across the board using the industry-standard battery of the test pellets. The Gamo Whisper Fusion Mach 1 may use a wide variety of pellets.

The muzzle energy of the Whisper Fusion Pro was consistently near 20 Ft/Lbs, even with the heaviest pellets tested (H&N Baracuda Match 10.65 Grains). And that’s interesting and excellent as well. With a range of only 3 pounds to 3 pounds and fifteen ounces, the Gamo SAT trigger performed consistently well in the tests, coming in at an average of 3 pounds, six ounces. 

Saturation of Noise

This is a major challenge for me. There’s a chance that the Whisper Fusion Mach 1 is quieter than I anticipated. If you’re not firing ultra-light pellets that violate the Sound Barrier and crack like a 22LR, it’s surprisingly silent for an air rifle of this power. 

Sights and Scope

The fibre optic elements are more refined than average, and the open sights are more than sufficient. There is a spring-loaded steel cover that shields the front sight. Therefore, this air rifle will suit your needs if you prefer to shoot with open sights.

The nicest part is that Gamo includes a high-quality scope with the Whisper Fusion Pro. The Gamo 3-9x 40AO scope features a 10-yard minimum focusing distance and high optical quality for a package scope. Very crisp and clear, indeed. A mil-dot reticle would make this scope nearly ideal for this firearm.

Optics Features:

  • 3-9x magnification
  • 40mm objective lens
  • 1″ tube
  • 30/30 reticle with fine crosshairs, perfect for target acquisition
  • 40 ft to 12 ft field of view
  • 3.5″ eye relief
  • 21.6 oz
  • 13.5″ long
  • Fogproof
  • Shockproof
  • Waterproof
  • Includes lens caps


A long air rifle, the Whisper Fusion Mach 1 is a sight to behold. Its overall height of 46 1/2 inches makes it too large for some gun safes. This length also makes it difficult to quickly spin the weapon, which may be a desirable safety feature.

All of my test pellets fed quickly and correctly into the rear of the barrel, and the manual safety was effective. This was in contrast to several break barrel air rifles. The Gamo Whisper Fusion Pro is easy to handle in the field thanks to its small weight of 7 lb 14 oz (with the fitted scope). On the downside, I discovered that the scope was mounted a hair too high for a comfortable cheek weld. 

Appearance and Finish

According to my testing team, the Whisper Fusion Mach 1’s aesthetics and build quality are “on par” with similar air guns. The stock is ergonomically stippled at the wrist and forend, and it has a pleasingly rounded profile on most of its surfaces. Metallic components have an appropriate bluing, and plastic ones have clean moulding seams. Overall, I am satisfied with the overall presentation, but I find nothing particularly intriguing about it.

Gamo Whisper Fusion Mach 1 .22 (Review + Hunt) by Wish Life Outdoors

Gamo Whisper Fusion Mach 1 Specs

Caliber.177, .22
Max Velocity1420 fps (.177), 1020 fps (.22)
Barrel Length20.5″
Overall Length46.0″
ButtplateSoft rubber recoil pad
Weight6.61 lbs
Trigger Pull3.2 lbs
Scopeable11mm dovetail
Shot Capacity1
Cocking Effort32 lbs
Rear SightFiber Optic
Front SightFiber Optic
TriggerTwo-stage adjustable
ActionBreak barrel
Fixed/adj. powerFixed


Quick and simple to mount, the scope required little to no adjustment to be effective. After a quick readjustment, it fits perfectly. The gun has superb accuracy. Once you learn the proper grip, load the rifle with the correct pellet, and let the piston break-in, the gun becomes quite accurate. It has incredibly tight quarter-sized groupings at 25 yards with hardly any flyers.


The rifle has poor fibre-optic sights and difficulty in disassembling the silencer at the nozzles. It also doesn’t shoot accurately and straight. 



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