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Gamo Swarm Magnum

Multi-Shot Break Barrel Air Rifle
  • Code: AGD-45608896 · .22 · 1300 fps
Out of Stock
After a successful launch of their newest multi-shot breakbarrel, Gamo has one upped themselves again. Building on the Swarm platform, Gamo has added more power and a new barrel. Capable of slinging a .22 caliber pellet down range at 1300 fps and creating 26.6 ft/lbs of energy, the new Swarm will appeal to a much broader range of airgunners. Featuring a gas-piston powerplant with Inert Gas technology (IGT), you can count on consistent performance numbers in any type of weather. And with the 10 shot magazine, loading a breakbarrel has never been easier!

Gamo Swarm Magnum Features

  • 10 Shot Repeater
  • Gas-piston powerplant (IGT Mach1--Inert Gas Technology)
  • Breakbarrel
  • Multi-shot
  • Rifled steel barrel
  • Whisper Fusion Sound Suppression technology
  • 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
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  • ManufacturerGamo
  • Caliber .22
  • Velocity 1300 fps
  • Condition New
  • Ammo Type Pellets
  • Action Break barrel
  • Barrel Style Rifled
  • Fire Mode Repeater
  • Gun Weight 6.88
  • Overall Length 49.20
  • Barrel Length 21.30
  • Loudness 3-Medium
  • Mechanism Gas-piston
  • Rail 11mm dovetail
  • Safety Manual
  • Front Sights none
  • Rear Sights none
  • Shots per Fill 0
  • Trigger Adjustability Two-stage adjustable
  • Trigger Action 0
  • Use Small game hunting/plinking
  • Warranty 5-year limited warranty
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Average Customer Review
4.517 Reviews
59% (10)
29% (5)
12% (2)
0% (0)
0% (0)
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By AdenFebruary 28, 2023

Does anybody have an idea what I may do?

Love this gun it is so accurate

Suddenly, I went to use it today and the cocking mechanism goes free. It will not shoot something happened. I’ve only had it two months.

By Gator 7.February 13, 2020

I like my Gamo Swarm Magnum multi 10 quick shot magozine break barrel I've owned it for about five months it seems to get stronger every time I clean it I've fired it around 200 times and it will put a pellet through a two by four at 25 yards it is also very accurate I change the scope from the original one to a UTG 3-9x32 true Hunter classic with the mil-dot reticle scope with the TF2+tools free two step 0 locking + resettings zero in at 30 yards

Very powerful break barrel and it holds true

Needs to come with upgraded scope with adjustable parallax and the the break barrel stay strong at 50 to 55 pound pull but I personally find that all right just makes me stronger and it is a little hold sensitive but hold at the light in artillery hold perfect

By PeterUSAMarch 20, 2019

Great Riffle. Lots of power. 10 shot magazine works perfectly. Scope is good. Sighted in and got tight grouping. Great deal.

Great .22 cal Riffle with a 10 shot magazine


By BrentUSAJanuary 26, 2019

This is a fun plinker that is accurate and powerful enough to use for pest elimination. Good build quality. Buy a few extra magazines so you can keep up the fun when shooting targets. Only negative is the effort needed to cock the breakbarrel mechanism. It takes some getting used to. Overall I am very -leased with this rifle.

1. 10 round magazines 2. Shot counter 3. Powerful 4. Accuracy 5. Fun!

1. Cocking effort

By NathanielUSAJanuary 14, 2019

I bought this rifle for the 10 round mag and it does not disappoint. I suggest shooting about 100 pellet through the gun just to get a feel for it and mainly to break it in. Then buy a better scope one with mil-dots. Ive had this air rifle over 2 months and still have a great time with it, whether small game hunting or plinking.

10 round mag, very accurate after you break your gun in.

There are no iron sights. So if your scope breaks then your out of luck. Also even though it has an indicater of how many shots it has left, ive still dry fired it. Just something to keep in mind if you consider buying this beautiful rifle!

By trinantietamDecember 28, 2018

Clean it before you do anything else.Shoot 50rds thru it and clean it again! Now you are ready to zero.It's a 2 handed cocker for 58yr old me. I got myself this for x-mas and I am very happy with it. Powerful, accurate,looks cool with 4-16x55 I put on it! I have shot h&n hornets and skenco ultramags have had no jams or issues.It loves gamo rockets. This is like my 5th air rifle and my new go to air rifle.

uh.....everything for me

Filthy bore. And more grease to come from cylinder.(hence the second cleaning before zeroing)

By Jen-YenUSADecember 24, 2018

So I just really shooting this air rifle on yesterday, shot about 70 pellets in about 1.5~2 hours while zeroing my scope. I did not use the included scope, for that reason, I saw more things than other buyers. First of all, this rifle is very good. Still performs different between different kind pellets, but not too far apart. Better than my Crosman Benjamin Trail NP All weather, which was a very pellet specific air rifle........... I zeroed my scope (Aipa Rifle Scope 4-12x50EG Dual Illuminated) by using Gamo Magnum pellet.....not really zeroed, but close enough. When tried some Benjamin Destroyer Pointed Expanding, the shot was not too far off. I was happy to see that result. It is kind of hard to break the barrel, but after a while, you will start to find it can be slightly easy to be loaded, especially if you do pull down method than push down method. If you use the included scope, you can stop reading my review now. I have no more to say about. But if you like me want to mound different scope, you will want to read my full review as I went through some thing and realized what I need to buy. This is the first time I actually lean what a dovetail rail is(the NP trail permanently glued a picatinny rail onto the dovetail, so I did not to worry about anything). I do not know what can a dovetail benefit to a shooter. 1. You need to buy a dovetail to picatinny rail. Be aware that a dovetail is 11 mm (3/8") with curved surface, and the base will convert it to the regular 5/8" (20 mm) picatinny rail. You need this in order to mount your selected scope. 2. You NEED TO BUY A RECOIL STOP FOR DOVETAIL RAIL. Mark my words, you DO NEED to buy one. I did not know the importance until I was shooing on yesterday and felt strange, why the somewhat zeroed scope keep one not being so accurate.....and suddenly noticed!!! My tightly screwed on convert rail almost falling out of my air rifle!!!! The vibration of this air rifle was so strong that it will move your rail backward even if you tightly screwed onto it. You need to buy a recoil stop or use the one on the air rifle in order to stop the movement of your rail. Or you have to find a way to do a pin on the dovetail to stop your picatinny rail. 3. The vibration is very strong, make sure you check your scope screw every each shot. Because....I find my tightly secured screw always got a bit loos after 1 or 2 kicks that hard.........but you do not quite feel any force on your shoulder. Good for the force damping butt design.

See my review

See my review

By Phil G.December 15, 2018

powerful and accurate from 30 yards in

light, 10 shot clip

By ThomasNovember 2, 2018 Verified Purchase

Just arrived! First impressions are very positive. I love the stock and how well you can lock into your shoulder with it. This rifle is trigger sensitive so hold it tight. As with any new rifle you have to shoot shoot shoot to break it in! Watch out Iguanas....5 rounds at 35yrs in a dime. I purchased this Magnum for the big IGUANAS at extended range....oh the 10 rd mag.... love it and it really works flawlessly....way to go.

Very powerful Accurate 10 rd mag Stock

It's a magnum so yes its harder to cock Trigger sensitive Manageable Recoil Scope... base

By BrianUSAOctober 26, 2018

my first magnum break barrel and initially i loved it, very accurate and not horrible cocking effort, but after about a tin of pellets the cocking motion started to become very gritty and would stick half way through the cycle, removed the action from the stock and it looks like the slide is digging into the tube so im not shooting it at this time i guess i will have to look into the warranty on this


hopefully none if they fix my cocking problem

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Is there a upgrade for this scope?

asked Will from USA

whats the best pellet for this gun

asked christian from USA

In my experience, and I am very particular, I zeroed at 30yds, and I shot 5 different pellets with varying grains. The Magnum liked the most was JSB 18's, Crossman Copper Magnum 14's, Gamo Red Fire, lastly H & N Hornet 16's. If I had to chose one for constant all around use, it would be Crossman Copper Magnum. I also really liked the JSB's.


PARTS AVAILABILITY-Where mite I be able to get the baffle, roller pin and tip/cover to my Swarm Magnum. I haven't been able to locate anything close to aquiring them. Love the gun though.

asked [email protected] from USA

Any parts would have to be sourced thru Gamo USA.

Mark from USA

I purchased the Gamo Swarm Magnum 22 cal. and love it! Is there any way I can put iron sights on this rifle or is strictly scope? and which scope works best with it that Air Gun Depo sells? Not looking for something pricey just one that works great! The scope that came with the gun is ok but not good enough

asked Stephen from USA

Vortex Crossfire II or UTG Hunter


There is no factory mount that will allow open sight unit on the Gamo Swarm. You may be able to custom make one. Look at the Leapers/UTG scope line. Good features,good prices.

Mark from USA


asked GLEN from USA

The shrouded version has a moderator and is slightly more quiet. The unshrouded model has a handgrip/muzzle brake that does not reduce the firing noise.

Mark from USA

Is this rifle able to shoot slugs straight from the box. Thanks, Rae

asked Rudy from USA

Slugs will not fit in the magazine. No

Mark from USA

Is there a solid purchase Bi-pod that you could recommend?

asked Peter Topol

Does this come with the pellet loader

asked Ken

Is this shrouded or un-shrouded?

asked John

This question is for the Airgun Depot exclusive gamo swarm magnum .22 scope combo upgrade. Is this gun the shrouded or unshrouded version of the swarm magnum? Thanks!

asked Nathan

Does the gun automatically go on safety when it is cocked or is the safety manually operated only?

asked Wallace

Hello my question is, if i can buy this rifle without the scope?, because i already have one to put in it. Thanks Mauro

asked Mauro Rodriguez

For the swarm Mag are the senicas too long and heavy to work with the rifle? Ray

asked Ray from USA

Will the swarm magnum. Wil the H&N snipers fit the Magazine what about the Magazine? What about the Polymag's or metalMags. Thank You Ray

asked Ray from USA

do you have to cock it every shot? or once for 10 rds?

asked Eric

What is the most accurate pellet found for use under 40 yards for this gun?

asked Mike

Is this model with the shrouded barrel worth $100 more than the unshrouded version? Would use primarily for backyard plinking, and varmint control, with other houses close by.

asked gw

Can i change to Gamo Swarm Magnum with combo scope ?

asked Duy Dong from USA

Does it damage the gun, swarm magnum, if it is dry fired

asked Les from USA

chci se dotazat zda je mozno zaslani do ÄŒR

asked jiří MELICHAR

Just how powerful is it? What is the FPE?

asked Frank

What is the maximum Grain Weight pellet that can be used in the rifle? I don't see what the heaviest Grain pellet is.

asked Randall from USA

What weight pellets are best for hitting power versus accuracy At up to 75 yards?

asked Tom from USA

Does this upgraded combo include the original scope?

asked Sean

Does the rifle have to be cocked for each round. Or will the one cock fire all10 rounds? I have never owned a break barrel.

asked Joe

How accurate is this gun

asked Vance Malone

when it will be for sale

asked domingo garza

When it goes on sale?

asked domingo garza

where it's made what country and I hope it's not Chinese

asked stanley rafacz

Are you guys going to do a full review of this air rifle?

asked Matt

Merhaba üstat bu ürünü satın almak istiyorum ama kargo maliyeyeti çok türkiye ye gonderiyormusuz gumrukde alıkoyma olurmu acaba ücretsiz kargo olmazmi lütfen yardımcı olun bana ben bu ürünü çok beğendim satın almak istiyorum teşekkürler

asked Hakkı from USA

weight of pellet

asked Frank

does anyone have an informed opinion on the reliability of the repeater/auto loading feature of this gun?

asked david

What Type of Ammo did it like? What was the accuracy like at 50m 75m and 100m?

asked Ray from USA

Why is it a $100 cheaper at Walmart. Was there this morning and the same gun was 199.99

asked Craig

Does the rifle self pump air into the cylinder battery powered, use a refillable air cartridge or do you pump it up manually?

asked Glenn

Which pellets performed best?

asked Michael from USA

What are some good amos to start with for the Gamo Swarm Magnum?

asked Smitty

Will the pellet cartridge accommodate a long skirt pellet?

asked Chris
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