Umarex Fusion CO2 Reviews

Trigger, quietness, accuracy OK.

Clumsy to load.

My first CO2, been shooting a Nitro piston. I like the lack of "hold sensitivity."

I never got the chance to use it.

The air pressure relief valve assembly would not come out of the tube. I had to return the rifle.

I purchased the Umarex Fusion in 2017 for quiet ,light, weight ,back yard pest control because cocking my break barrel became too difficult. It is the best air rifle I have owned for the price in my 86 years young. I adjusted the scope and it shoots accurately within a 25 cent circle. great on pigeons and doves Without disturbing neighbors. 50 to 60 shots per load. highly recommended after correcting their o ring problem. would have rated it 5 stars without the o ring problem

The only problem I had which is apparently an on going problem was faulty orange o ring that was terrible. Short of returning the rifle I purchased an Archer Airgun 's tube cap with a far superior o ring that I have not replaced in 2 years. Excellent product that Archer should have looked into.

Great accurate lightweight gun for my needs after correcting the faulty o ring problem thanks to Archer Airguns.

It's a good gun for plinking at 25~30yards. Didn't take long to to zero in. Stay with one brand of pellet. Accuracy varies greatly with different brands. The scope is decent for this backyard range. It's actually quieter than I thought it would be. You hear it hitting the target and plywood more than anything. I get about 25 shots before I notice a drop in the range.

The CO2 system sucks. Expect to sacrifice 2 or 4 carts before you get the feel of it. The instructions are correct, It just feels like you are over tightening or under tightening the caps. One day I will figure out a mod to attach a paintball bottle to it. Put some plumbers grease, not oil on the O rings. Helps a lots!

Don't expect to take out a squirrel with it. In my neighborhood they just brush off the pellets and flip you off. Oil the barrel every 5~10 shots to help break it in.

accuracy, trigger, adjustable power, flat bottom or foregrip

easier way to load pellets or better yet some sort of magazine. A better "O" for CO2 chamber although to date mine works, just swells a little but goes back down fairly quickly.

I made a loading tray about 5/8" long with 1/8" bent up sides and just wide enough for the pellet. Made it out of thin card stock, colored it black with a magic marker and coated with thin super glue for strength. Then closed the bolt pushed it up against the bolt and glued it in place. Still have to handle the pellets but it works darn good, the pellets just roll in place. Since I shoot mostly from a bench I put mine on the left side, but it could easily be made for both sides.

Everything, received rifle in excellent shape. Very easy to operate including the Co2. The rifle is seriously accurate. And very quiet. The pellets used: Crosman Premier 7.9 gr.HP . AT 25 yrds. hole in holes. Here in Arizona the summers are hot and CO2 guns perform well. Very well made. I was even surprised how clear and well made the scope is. Nothing like the CenterPoint ones that came my Croman Crusher.

I couldn't find one thing. Even my brother was amazed with the power and how quite it was.

Before I purchase anything. I always search for reviews before I pull the trigger. Read the instructions. The trigger was smooth right out box. That's it. Very happy with my purchase.

Loved the accuracy and the trigger, also the weight Would change the sights but it is great the way it works.

I had to re-read the instructions on the CO2 cap and valve. I do not understand why if I leave it for 2 or 3 days w/o using it the CO2 will deplete. I have a GAmo P25 pistol and a replica John Wayne revolver by Umarex and they do not lose the CO2. Am I doing something wrong?

Nice little rifle, love the trigger,light & smooth right out of the box. 10 yd. group .163" center to center with H&N pellets. And a good scope.

Better scope, nothing else.

Tried it at 25 yards, loved the accuracy, The sight was on target with no need to adjust it. Exellent weight and handling characteristics. A breeze to shoot!!!

The pellet port is a nuciance, I would have it fixed such a way that the pellet will go in there straight, not sideways. The other thing I would address is the valve for the CO2 tanks, that is a real PIA!!!

Remenber this pellet gun is effective to 25 YARDS, not 30 feet. I will test it to 50 yards and let you know if it did or not. 50 Yards is a long way to go for a pellet, specially the .177.

Silly accurate with jsb heavy.clean the Chinese out of it, Mount a nice scope with some bkl scope rings.the trigger is lacking,but with some know how and a few tools you can end up with a very nice trigger and a solid safety.

Don't include janky scope.lower price.140$

Don't speed fire wait 7 Seconds between shots.recommend bkl scope rings. 70shots per 2 co2 cartridges. I have 16 airguns and this is my favorite. Only downfall is the cold dramatically effects CO2

Fun to use and quiet. Very accurate with the right pellet and scope. Price is nice.

Pressure relief valve isn't hard to use but looks like it is going to break...feels cheap. O-ring doesn't look like it will last long. Stock is short.

Can't comment on the "included" scope mine did not have one in the box...I paid for one and there was a place for it in the box and I got the rings but no scope.

The Fusion has quickly become one of my favorite guns. After figuring out that the end of the relief valve was not fully screwed down, the gun has worked perfectly. 5 shot , 5/8" group at 25 yards. That was using 6x Bugbuster.

Trigger could be better. It has adjustment but still needs work. Fill plug (relief valve) is a pain.

Throw away the almost useless owners manual. Watch Rick Eustler's video on you tube.

I'm fairly new into shooting air rifles, as post-surgery I can't shoot conventional firearms (recoil). I bought the Fusion rifle because of reviews and price point. Overall I'm quite satisfied with the gun, although single-shot can be a bit bothersome. I was motivated to write a review based on what others say about the CO2 mechanism. It is NOT difficult to load the cartridges, and IMHO the design is excellent. Even though I use Umarex cartridges the design allows you to use other length CO2 cartridges such as Crosman with no problem. All you have to do is adjust the valve! (Can other guns do that?) The valve allows you to PRECISELY adjust the pressure to maximum efficiency. C'mon folks, it's not really that difficult. Overall it's a well-designed rifle of pretty high quality, priced right.

The 4x scope is so-so, but the mounting rail is terrible. I had to exchange the first one I bought because the supplied rings would NOT seat properly in the grooves. The replacement gun was satisfactory, but really Umarex, is it that hard in 2016 to design grooves that will hold the rings securely the first time. (I have read other reviews that mentioned the same mounting problem.)

Learn to load the CO2 cartridges properly: lubricate the cartridge tips, insert them properly, lubricate the o-ring, adjust the valve as recommended (unscrew 3 turns from tight), tighten the retaining ring, adjust the valve more precisely (if needed) until all hissing just stops, put on the valve cap, and go shooting. The whole (easy) process takes 30 seconds at most.

My friends at the gun club were amazed at how quiet and accurate this gun is. People actually laid down their conventional rifles and came over to ask to try my Fusion. This is my best buy for the money, and among my top favorites for air rifles.

For what this rifle is a CO2 that can run on 1 (approx 25-30 shots) cartridge or 2 (approx 50-60 shots), light weight and excellent accuracy! For me and what I use it for which is for target practice up to 20 yards in my backyard it is great! I also use it for small pest control House Sparrows which raid my bird feeders, shooting from inside my home back door, it is instant kill using Meistersinger 8.2gr Wadcutters.

Cheaper the better...it has dropped in price since I bought mine here a year ago. Almost want to buy another but hoping they come up with an upgrade repeater!!!

I posted some pics using RWS Meistersinger 8.2gr and RWS Superdomes 8.2 gr. I will post new pics when i test with some JSB Pellets. So far the Meistersinger are my go to pellet if I'm shooting within 20 yards. I don't think this is a hunting rifle unless you are usIng it for mice, rats, small birds and maybe squirrels within 15 yards headshot. I really like this rifle and this is one of those gateway guns that can lead you to the PCP world...forgot to add that this gun is quiet enough for backyard shooting. Not high end PCP quite but good enough especially for the price.

Low Noise

O ring tore within two months.

Don't buy it. Can't find replacement o rings.

Very accurate, well balanced, and easy to shoot. i'm new to airguns, and have had two air rifles over the past year. The Fusion is by far my favorite.

C02 install is not easy. I'm never sure if I've done it correctly.

Great value for the money.

Light weight, VERY VERY accurate, hard hitting for a co2 (did not chrony but from target results at 20yds), relatively smooth bolt, very quiet back yard friendly, very good co2 life (50-60 good shots), uses several different pellets, nice looking rifle.

Make available with the single screw cap for loading co2's. Double cap not a problem but what's the point?

Very accurate with various pellets. I use the Gamo Pro Magnum 7.8gr 750 ct from Pyramyd Air.......among others. Try other pellets to meet your needs. Upgraded scope to a 6-24x50 with high see thru rings. Excellent shooting rifle. This rifle is very much worth giving a try.

It's light, very accurate, easy to handle, easy to get a good spot weld, really nice looking, auto safety is easy to use.

Not much, everything works great.

I'm not sure of why there is so much complaining about the CO2 loading process. Reading the manual should take care of any issues. I did purchase an after-market CO2 cap, but it was money wasted. I never used it. The stock cap works fine. I did buy some poly O rings and have about 500 rounds through the rifle so far. The rings swell just a bit. I change cartridges at 55-60 shots and don't have to rapid shoot to let off excess air. The cap does that for me. By the time I get another pair of cartridges oiled up and rough count some pellets, the cap comes off easily. No drama whatsoever. A drop of oil on the ring, and I start shooting again. I really like this rifle and highly recommend it and Pyramyd. Great stuff.

I have enjoyed this air rifle more than any other I have owned! It is very well manufactured. I am shooting dime sized groups at 25 yards with Crossman Premiere from Walmart. The silencer works!!! It is very backyard friendly in a neighborhood. I'm getting about 8 ft/lbs of energy. Biologist Ted of Ted's Holdover says you need a minimum of 4 ft/lbs on the dime sized kill zone for birds and small game. This gun has double that. I have a hunting license and have only taken legal game with this gun in my backyard, and without exception, everything I've dispatched with this gun died instantly and humanely. I did upgrade the scope to an Accushot SWAT 3-12X44. Together it is an outstanding combo. I have a tricked out Ruger 10/22 and this air rifle is as pleasing to shoot as my Ruger. And I don't need to go to the farm to shoot it.

The stock is a tad short for a 6'2" adult's arm length, but not worth adding an extension. Another baffle in the can would be nice. It's very quiet, but it could be quieter. I had no problems with the provided chamber plug, but I thought it kind of fiddly and just ordered an aftermarket solid plug. It's quick and easy to shoot the gun down when it gets low.

A lot of folks have a hard time understanding how to use the chamber cap with its degassing valve. I didn't, but I did buy the solid, aftermarket plug for simplicity, and extra o rings. When you degass the gun and remove the plug, you will see that the o ring will have expanded. You can wait for it to shrink back down so that you can reload co2, or if you buy extra o rings as I have, you can just swap it out with an already shrunk one and keep shooting. If you want to plink, shoot targets, and shoot small game at distances within 30 yards...get this gun, upgrade the scope, get the aftermarket plug and some extra o rings, and start buying bulk boxed of co2 powerlets because if you are like me and love to shoot, you are going to find yourself shooting this gun a lot. I am very pleased with it!