Date: 23/5/2019 5:59

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Gamo Swarm Magnum, Multi-shot Air Rifle

4.556 reviews
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Gamo Swarm Magnum.

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  • 0.22" (5.5mm)Unshrouded

    Caliber: 0.22" (5.5mm), Stock: Synthetic, Handle: Ambi, Upgrades: Unshrouded,

    Gamo Swarm Magnum .22 cal, Unshrouded

  • 0.22" (5.5mm)Shrouded

5-year limited warranty



List Price $279.99, Orig.Price $249.99 Save $50.00 (20%)

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  • Gamo's CAT -.
    Gamo's CAT - Custom Action Trigger. New, independently adjustable 2 stage trigger.
  • Gamo's IGT (Inert.
    Gamo's IGT (Inert Gas Technology), improves your knockdown power, reduces cocking efforts, and lessens vibrations.
  • Whisper Fusion double-integrated.
    Whisper Fusion double-integrated noise dampener (reduces report by 89.5%).
  • 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.

Gamo Swarm Magnum, Multi-shot Air Rifle

  • 10 Shot Repeater
  • Gas-piston powerplant (IGT Mach1--Inert Gas Technology)
  • Breakbarrel
  • Multi-shot
  • Rifled steel barrel
  • Available with Whisper Fusion Sound Suppression technology or unshrouded
  • Recoil Reducing Rail (RRR) maximizes scope lifespan with 99.9% recoil compensation
  • 11mm scope rail with scope stop
  • SWA (Shock Wave Absorber) recoil pad reduces felt recoil by up to 74%
  • All-weather ambidextrous stock
  • Custom Action Trigger (CAT) independently adjustable 1st and 2nd stage, allows you to tailor your trigger.
  • 15" length of pull
  • 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
  • Waterproof
  • Includes lens caps

Benefits of IGT over Spring Piston:

  • Smoother cocking
  • Smoother shooting (less vibration)
  • No spring torque
  • No spring fatigue, even if you leave it cocked for hours
  • Functions perfectly in cold weather
  • Lasts longer than a metal spring

Gamo broke the mold when it released the original Swarm Maxxim, the first successful multi-shot breakbarrel in over a decade.  Now comes the Gamo Swarm Magnum the most powerful Swarm yet.

The Swarm Magnum is sure to become the definitive Swarm, taking everything shooters loved about the original and dropping in a revved-up IGT Mach 1 gas piston and Whisper Fusion technology to deliver next-level power as quietly as possible. If noise isn't a concern, there is also an unshrouded version that delivers all of the same power and quick follow up shot capability.

Featuring some of Gamo’s best technologies, the Swarm Magnum has all the benefits of gas-pistons including easy cocking, smoother shooting, and the ability to fire in cold weather. Once shooters load up their 10-shot rotary magazine, the Magnum can spit .22 cal. pellets at speeds up to 1,300 fps, a  full 300 fps faster than the Maxxim. After every shot, simply break the barrel and the magazine automatically loads the next round into the breech.  This perfected system has been left unchanged for multiple shots as fast as you can cock the barrel.  

The Magnum’s stock has changed for the better as well.  Featuring a glass filled nylon synthetic thumbhole stock, the Magnum provides shooters with a comfortable hold in all-weather conditions.  Resting atop the stock is an 11mm Dovetail Recoil Reducing Rail System (RRR), designed to reduce recoil stress on your included 3-9x40 scope.  For crisp trigger pulls, the Magnum features Gamo’s Custom Action Trigger (CAT), an independently adjustable 2-stage trigger.

If you want the most powerful version of this revolutionary multi-shot breakbarrel available, choose the Swarm Magnum!

other products by Gamo

Caliber0.22" (5.5mm)
Max Velocity1300 fps
Muzzle Energy26.6 ft/lbs
Barrel Length21.3"
Overall Length49.2"
Shot Capacity10
Cocking Effort41
Front Sightnone
Rear Sightnone
Scopeable11mm dovetail
TriggerTwo-stage adjustable
Suggested forSmall game hunting/plinking
ActionBreak barrel
Body TypeRifle
Weight6.88 lbs

other products by Gamo

Average Customer Review

4.5 (56 reviews)

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4.0 4.0

4.0 4.0

4.0 4.0

By Richard from USA on 2019-05-21
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0.00 ratings

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Things I liked: This is a very powerful break barrel and requires a good bit of strength to cock. No problem for me, but I am a big guy. Others might do better with the Swarm Maxim. The Swarm Magnum is great gun, but as others have observed, the scope is absolutely worthless. Every time I fire the recoil causes the guts of the scope to move around... it's in focus. Fire... now it's out again. Bang on the side the scope with the heel of the hand. Maybe it clears up, maybe still blurry. I only gave 4 stars for this reason. Very frustrating. I ordered a Leapers Hunter for it. That one gets terrific reviews. I hope it works for me.

Things I would have changed: Leave out the scope and reduce the price accordingly.


4.0 4.0

4.0 4.0

3.0 3.0

By Jerry from USA on 2019-05-12
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Things I liked: Handles great, Looks great, powerful, easy loading, I am usually short and to the point, so no long winded reviews. I like the gun, but to be honest it is my first high powered air rifle.

Things I would have changed: Cocking is pretty hard. My son who is a serious weight trainer tried cocking and he said it is very difficult. He curls 90 pound and does 10 reps. It maybe I got an extra hard one to cock. I am assuming it will get easier with use. I have watched videos on a guy cocking with one hand. There is no way my son could do that. Here is hoping it will ease as I break it in.

What others should know: Not 100% on the accuracy just yet. I have been shooting at trees, fence posts, etc. Purchased some targets and a hanger will work with the rifle some more the next couple weeks. I was working on my 70 birthday party and have not work with the rifle very much yet, but from what I have seen really like the unit.


5.0 5.0

5.0 5.0

5.0 5.0

By Bradley from USA on 2019-05-11
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Things I liked: Looks great, feels great, Very Powerful, very accurate at least up to 50 yards. I'm using H&N ,JSB and Crossman Premium Pellets. This gun loves the good stuff :-D I have 6 Pellets similar weight, 18-21 grams, similar accuracy. A little tough to COCK compared to lesser powerful Guns

Things I would have changed: Maybe switch to the new Gen 2 10X and make a .25 :-D

What others should know: With this guns power and accuracy with 10 shot ability, maybe don't need a PCP


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  • Thomas from USA asked:

    can anyone hit a bullseye with this gun the videos don't show accuracy no video yet shows abullseye hit is it the gun ?is it the guy that sights the gun ? in or is it the shooter???

    • Jordan from USA:

      You possibly could have a dud but I've fired hundreds pellets through this gun and hit bullseys at 30+ yards. But with spring guns it comes down to how you hold the gun even at a bench rest.

  • Jeff from USA asked:

    I just purchased the Swarm Magnum. Now that everyone has had a chance to shoot this gun quite a bit....what are the best all around pellets I should buy for accuracy and still have fairly good velocity???

    • Tyler from USA:

      Best luck I had with mine was Predator GTO pellets and JSB 18.13 grain, though the heavier pellets are not as consistent as the GTOs for some reason....must have a barrel that just likes them a lot

  • Jason from USA asked:

    Can you use any brand of .22 pellets with this gun? Like the Crosman Premier destroyers?

    • Tyler from USA:

      Crosman Destroyers should be just fine in this rifle. Not all pellets will fit the magazine though, so keep in mind that the longer pellets pay not fit

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Item Description

GA-6110061355-C54 [PY-4560-9891]

Gamo Swarm Magnum .22 cal, Unshrouded

Caliber0.22" (5.5mm)
Max Velocity1300 fps
Muzzle Energy26.6 ft/lbs

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