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Beeman QB78S

Available in .177
Only $124.99
  • Save $15.00 (10%)
  • Code: AGD-42538141 · $124.99 · .177 · 650 fps
Estimated in stock date is 07-22-24
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With an all-weather synthetic stock, great balance, and a rifled barrel, the QB78S is the next great contender in CO2 rifles! Powered by two 12 gram CO2 cartridges, this rifle is capable of 650 to 550 fps, depending on the caliber. For a stable, comfortable hold, the rifle features a pistol grip thumb-hole stock. The single stage trigger and rear sights are fully adjustable. Mountable accessories are almost limitless, with the Weaver/Picatinny rail located in front of the fore grip. Makes for a great plinker or when keeping your skills tuned during the off-season.

Beeman QB78S CO2 Air Rifle
  • Bolt-action
  • Single-shot
  • Crossbolt safety
  • Synthetic stock
  • Adjustable 2-stage trigger
  • Runs on (2) 12 gram CO2 cartridges
  • 11mm dovetail
  • Rifled barrel
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  • ManufacturerBeeman
  • Caliber .177
  • Velocity 650 fps
  • Condition New
  • Ammo Type Pellets
  • Action Bolt-action
  • Barrel Style Rifled
  • Fire Mode Single-shot
  • Gun Weight 5.75
  • Loudness 4-Medium-High
  • Magazine Capacity 1
  • Mechanism CO2
  • Rail 11mm dovetail
  • Safety Manual
  • Front Sights Blade
  • Rear Sights Adjustable
  • Shots per Fill 0
  • Trigger Adjustability Single-stage
  • Trigger Action 0
  • Use Plinking & target practice
  • Warranty 1-year limited warranty
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Average Customer Review
4.012 Reviews
67% (8)
17% (2)
0% (0)
8% (1)
8% (1)
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By SteveJune 8, 2022

easy to sight in, quiet, sufficient for pest control

don't leave CO2 charge in it, the seals can't take even 3 or four nights. and it's not worth fixing after owning for 2 weeks.

By OwenUSAMay 31, 2021

After I fully power tuned mine it definetly likes heavier pellets a lot more. I'm mostly shooting 11.5 grain h&n silverpoints, and crossman 10.5 grain heavy domes. Lighter pellets will fly upwards of 900fps but the accuracy gets a bit squirrely. A heavy pellet keeps it consistent with the .177 caliber. and I'm still experimenting with the 22. So far it really like regular crossman 14.3s. Honestly though, out of the two, I think the 177 is the one I like more. Because I'm pushing slightly lighter pellets faster and with deeper penetration and energy dispersal. I've hit squirrels and had complete passthroughs where they didn't even jump, just kinda flopped over without realizing what had even happened.

I got one of these in .177 first and was skeptical considering how little I paid for it, but I started playing around with it and I'm in love. Right out the box the accuracy and shot count is really good. the power was still flipping up my resetting targets so its already good to do a little pesting. And Its got an adjustable trigger. Basically everything you'd find on the older qb rifles. Then I got into power modding it. I added a mike mellick custom power valve, magnum spring, spring spacers, the archer xp tune kit, an oversize bolt, stainless steel compensator, An 8 shot magazine, i fixed a 4, 12 gram co2 holder to the front left slats, and then put a pic rail with a laser sight on the right coupled with a 3-9x40 light up aoe, and a pocketed cheek pad I can slap another 6 canisters on velcro, plus hold all my ammo for the day. Now I'm definitely shooting at above 800fps average with a little co2 burner. I actually love the setup so much I duplicated it in 22 caliber as well. CLUTCH

a bit rusty out of the box, and super crunchy for the first 100 shots or so bit once you break it in its crazy accurate for a co2. Definetly needs to be stripped, cleaned, and resealed almost immediately after opening. Just give it a lottle elbow grease and love and itll love you back. My first one actually needed a full reseal after a week. But once I figured out how it works and how to completely strip it, i havent had a single problem since that i cant take care of myself or just get the parts. Its a piece of cake if you're into DIY projects.

By GeraldUSAMay 31, 2021

Probably the best, easiest, cheapest, most powerful unit on the market.

Shot 597 fps out of the box. Minor modifications and it's now 700fps.

Nothing, it works perfectly.

By KeithNew ZealandSeptember 21, 2018

Really like the synthetic stock. Feels comfortable to hold. Accuracy good given the the limited range.A great co2 gun for target shooting and small pest control. Blueing and finish of the gun is very good considering its price.

By FredUSASeptember 2, 2018

I got the .177 package. For me the scope was great for what I needed it for 10-40 yards. At 10 yards you can get a single ragged hole grouping. Gun has enough power out to 40 yards without any issues and is very accurate too. For the price of the package you can not go wrong.

Accuracy, price, not really pellet picky, does well with lead free pellets also.

Honestly none.

By TonyUSADecember 15, 2017

Good buy, nice for backyard plinking-target shooting. I am still new to break barrel and pcp and C02. Fixed sights are good. Cannot mount scope.

Same as above!

None by me.

By Jeff B.September 4, 2017

gun arrived a week after cartridges and pettels gun arrived a week after pellets and cartridges all nicely packed and as advertised

gun and scope as advertised just needs better tripod

cheap tripod white metal broke first time I used

By gary t.June 12, 2017

the qb was better than I r though it would be good looks the scope is fine but the eye relief is a little low for someone my age have to run it full but some one with good eyes shod have no pro problems it 553 ft #8.45 I git the upgrade bolt from archer shod add another 100fpsall @all drives tacks at 35yd bench rest I am an old gunsmith and I am impressed gary az.

on the money at 35 yd.

scope not enough eye relief

By KennethUSAMay 8, 2017

Cheap low power 22 cal


By VinnyMarch 22, 2017

Awesome rifle. A little hard to cock at first but once broke in worked fine.

Very accurate and we'll built.

Really no cons.

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Why is it so hard to screw cap on ? I have to use adjustable pliers.

asked Steve from USA

How long is the rifle and is it a semi auto and where do you load the pellets.

asked frank from USA

Is there a magazine available for this?

asked Jim from USA

Does scope come with

asked Gerald from USA

Is there really a rust issue with this rifle? I heard more than comment here and an other two somewhere else. Please advise. Thank you

asked Jacqueline from USA

It is actually not rust but a coating that is put on from the Chinese factories to stop the rust it looks brown but it is not rust

Frank from USA

Can I change to.22 cal.from .177 what do I need to do

asked Tony from USA

All you need is a point 22 caliber barrel and a point 22 caliber pilot shaft

Frank from USA

Buenas noches, miren soy de México y tengo duda de los precios que miro en la pagina son dolares o son pesos Mexicanos.

asked Jose Ricardo from Mexico

How long is the overall length

asked Geremy

What is the overall length?

asked Matthew from USA

Does this come with the standard 14mm barrel or the deluxe 15mm barrel?

asked Joey from USA

All the QB78 models that I have come with a 15 mm barrel other than the older PC P1317 comes with a 14 mm barrel

Frank from USA
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