Date: 20/10/2020 19:17
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Gamo Whisper Fusion Mach 1 Air Rifle, CAT

4.519 reviews
Gamo Whisper Fusion

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  • .177" (4.5mm)

    Caliber: .177" (4.5mm), Stock: Synthetic, Handle: Ambi, Gamo Whisper Fusion Mach 1 air rifle

  • .22" (5.5mm)

5-year limited warranty



List Price $299.99


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Estimated in-stock date 11-09-20
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  • Whisper Fusion double-integrated
    Whisper Fusion double-integrated noise dampener (reduces report by 89.5%).
    IGT SYSTEM (INERT GAS TECHNOLOGY) Mach 1 provides a more consistent power level,
  • Gamo's RRR (Recoil
    Gamo's RRR (Recoil Reducing Rail) Technology subdues the taxing stresses placed on your scope from the intense recoil of air guns.
  • Shock Wave Absorber
    Shock Wave Absorber Recoil Pad absorbs up to 74% more recoil
  • Gamo's CAT -
    Gamo's CAT - Custom Action Trigger. New, independently adjustable 2 stage trigger.
  • WARNING This product
    WARNING This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Gamo Whisper Fusion Mach 1 air rifle

  • IGT MACH 1 gas piston (IGT=Inert Gas Technology)
  • Breakbarrel
  • Single-shot
  • Velocities up to 1420 fps in .177 caliber w/PBA Platinum ammo
  • Fixed fiber optic front sight
  • Fully adjustable fiber optic rear sight
  • 11mm scope rail
  • Whisper Fusion double-integrated noise dampener (reduces report by 89.5%)
  • Rifled steel bull barrel
  • Fluted polymer barrel jacket
  • SWA (Shock Wave Absorber) recoil pad reduces felt recoil by up to 74%
  • All-weather ambidextrous stock with black rubber inserts on grip & forearm
  • Raised cheekpiece
  • Custom Action Trigger (CAT) independently adjustable 1st and 2nd stage, allows you to tailor you trigger
  • Automatic cocking safety system
  • Manual safety
  • Recoil Reducing Rail maximizes scope lifespan with 99.9% recoil compensation
  • Includes 3-9x40 scope

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
  • Wateproof
  • Includes lens caps

Benefits of the IGT MACH 1 over a metal mainspring:

  • Large cylinder delivers more velocity and terminal penetration
  • Smoother cocking and shooting
  • Increased precision and speed
  • Less vibration
  • No spring fatigue, even if you leave it cocked for hours
  • Functions perfectly in cold weather
  • Lasts longer than a metal spring

Whisper Fusion sound suppression

The Gamo Whisper Fusion Mach 1 features the Whisper Fusion sound moderator. Pellets travel through two different chambers that combine to compress and prevent noise expansion, resulting in the quietest Gamo powerplant available.

Built for stealthy hunting and accurate shot placement, the Gamo Whisper Fusion Mach 1 air rifle is a leader in quiet shooting. Outfitted with a 3-9x40 scope, it's a hunter's dream when it comes to quiet, precise shooting.

Equipped with the Whisper Fusion sound moderator, the Whisper Fusion Mach 1 is the most discreet air rifle Gamo offers. Combine that with the enhanced IGT Mach 1 powerplant, and you experience faster velocity, more power and even better precision. By using a gas cylinder versus a conventional spring, air rifles furnished with the IGT Mach 1 offer smoother cocking and shooting, no spring torque, no spring fatigue, no issues shooting in cold weather, and a much longer life than a spring powered gun. The IGT Mach 1 allows you to cock the gun and wait before taking your next shot without worrying about any weakening of the metal spring. You'll also notice a lot less twang and vibration.

The synthetic stock has a comfortable, ambidextrous cheekpiece, making it ideal for right- or left-handed shooters, and for added comfort, the Whisper Fusion Mach 1 has rubber inserts on the grip and forearm. The buttpad incorporates the Shock Wave Absorber (SWA) for more recoil reduction. And while the Mach 1 gas piston seriously reduces vibration, the SWA recoil pad stops you from feeling most of the recoil from the remaining movement of the gun.

The air rifle features the smooth and predictable Custom Action Trigger (CAT) that allows you to tailor the trigger to your own personal preference. And, only Gamo offers the Recoil Reducing Rail (RRR). Designed to subdue the stress on your scope, the RRR absorbs shockwaves and reduces the stress on the internal components of your scope by almost 100%.

See manual

other products by Gamo

Caliber.177" (4.5mm)
Max Velocity1420 fps
Muzzle Energy21.4 ft/lbs
Barrel Length20.5"
Overall Length46.0"
Shot Capacity1
Cocking Effort32 lbs
Front SightFiber Optic
Rear SightFiber Optic
Scopeable11mm dovetail
TriggerTwo-stage adjustable
ButtplateSoft rubber recoil pad
Suggested forSmall game hunting/target practice
Trigger Pull3.2 lbs
ActionBreak barrel
Body TypeRifle
Fixed/adj. powerFixed
Weight6.61 lbs
See manual

other products by Gamo


Average Customer Review

4.5 (19 reviews)
1 star

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5.0 5.0

4.0 4.0

5.0 5.0

By Stanley K. from USA on 2020-05-27
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1.01 rating

Verified Purchase

Things I liked: Power and low noise level. Accuracy is really great.


5.0 5.0

5.0 5.0

5.0 5.0

By Christian from USA on 2020-05-03
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0.00 ratings

Things I liked: I purchased a refurbished model. The stock ergonomics are excellent: perfect stippling texture, correct comb height for scope use and an area on the bottom of the stock in front of the trigger guard perfectly designed for off hand palm placement. The CAT trigger can be adjusted to perfection, but you will need to go to a longer M2.5 screw to get the full range of second stage adjustment. The barrel lock up is positive, with no stringing noticed after approximately 500 pellets through the rifle. Power and accuracy are excellent. 60 yard shots are only limited by my ability to hold the rifle steady. The one piece scope mount is excellent.

Things I would have changed: My main complaint is that it is not as quiet as I thought it would be based on the reviews. I believe mine is loud enough to damage my hearing and I am shooting heavy pellets. I put a foam ear plug in my right ear (I am a right handed shooter), as that ear seems to get more of the report than my left. Minor gripes: The included scope is serviceable, barely, as every Gamo owner knows. Mine loses sharpness at 9X. While not a light rifle, carrying it for a few hours in the field is manageable. Sling studs would be handy for climbing and shooting positions. My green rubber stock band rubber off/fell off somewhere - no big deal. I found the comb to be too high for me to use the iron sights easily. I wish the suppressor/moderator was removable for inspection and cleaning of the barrel.

What others should know: I use a pellet pen to load. I prefer this method to the Swarm system on my son's rifle. Seating pellets properly is easy with nice breech chamfering. This rifle is as long as my .30-'06 hunting rifle with a 24" barrel, so it requires my longest soft and hard cases. I am having good results with Crosman Premier Domed Ultra Heavy 19 grain pellets. Finding a good way to clean the barrel was challenging. Patch Worm flex rods get hung up in the suppressor. I tried straws, but could not get them to stop the rod from hanging up. I eventually used monofilament fishing line about four barrel lengths long and small split shot. I tie on three patches on at a time a little over one barrel length apart using overhand knost. I put small split shot on the lead end of the line and let gravity to pull the line through the muzzle. Cheap, effective and easy on the barrel.

4.0 4.0

5.0 5.0

5.0 5.0

By Stanley from USA on 2020-04-22
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0.00 ratings

Things I liked: The overall weight and balance is great. It shoots very hard and is pretty accurate. The trigger has good feel. I prefer the break barrel gas rifle to the PCP guns (due to expense and hassle of charging). I bought it online and the price was reasonable (wasn't in stock at Pyramid Air). It is really a quiet gun compared to most, it makes a clunk sound when shooting. Overall I think it is a really good gun for the money.

Things I would have changed: There is a lot of plastic (trigger, trigger guard, sights, suppressor) on this gun. It makes it more affordable just hope it lasts (it does come with a 5 year guarantee). I would also have liked for it to have a swivel on the butt stock for adding a sling (for people that hunt and carry it long distances.

What others should know: I have an older Diana 34 springer (177 caliber). The advantages of the Gamo Whisper fusion over this gun is that it is 22 caliber and shoots a lot harder. It is quieter and lighter weight and comes with a fairly decent scope. Overall I like this Gamo Whisper fusion a lot.


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  • Edward from USA asked:

    Any comparison in accuracy between this gun and the Gamo Swarm Whisper (.22 cal)? I own the Whisper, and it took a lot of tinkering to get any sort of accuracy at all from it.

    • Mark from USA:

      They are very similar in construction and operation. If you get a good one it will shoot pretty well.

  • Eric from USA asked:

    Any recommendations for a .177 subsonic pellet to use with this gun on small invasive birds? Range is thirty-forty yards.

    • Mark from USA:

      All accurate pellets are subsonic. Use a 10 gr-13 gr pellet. JSB's are very good.

  • Christopher from USA asked:

    Can someone chrony the .177 with 7-8 grains please?

    • Mark from USA:

      Right around 1000 FPS. A little lower .

See all discussions

Item Description

GA-6110063254 [PY-4021-7681]
Gamo Whisper Fusion Mach 1 air rifle
Included:3-9x40 scope and mounts
Caliber.177" (4.5mm)
Max Velocity1420 fps
Muzzle Energy21.4 ft/lbs

This product is out of stock.
Estimated in-stock date 11-09-2020.
Place your order now for delivery priority!

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This product is out of stock. Estimated in-stock date 11-09-2020