Umarex MP40 Reviews
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The MP40 is a real pleasant surprise. It exceeded my expectations. The fit and finish along with the weight and feel of the gun is excellent! It is surprising accurate for a BB gun. While I haven't put it through my chronograph, it's shooting straight and hitting the target hard at 15 yards. I'm a springer fan and use to shooting my higher priced pellet air guns such as my HW97K, Beeman R9, RWS 48, and RWS K98. All of which can shoot one hole accuracy at 15 yds. The MP40 is not that type of air gun, but for much less than 1/2 the price, it's not only an excellent replica, it's a whole lot of fun to shoot!
I wish the retention spring for the bb's had a notch that would lock it in place for loading. As it is, you have to hold it back with your finger when loading the bb's. Not a big deal, just makes it a little awkward.
The MP40 is an excellent value for the money. I'd highly recommend buying CO2 cartridges in the 40 pack. The temptation to shoot this gun on full auto is strong. Although with the blow back effect, even the semi auto is a hoot.
The weight, look, feel and accuracy. 1 star for now as I may have to return it. It began to dry fire with a loaded magazine with fresh CO2 with both cartridges punctured, even with only 20 BBs inside it. There's a spring visible inside the breach which I didn't notice before, but may have always been there. It didn't start to malfunction until after 1,500 or so BBs fired through it, 40 BBs per fill. Was working really good in Semi and Auto modes until the malfunction happened.
Stronger magazine spring. A catch for the follower to make loading easier. Umarex's M712 clips have a catch. A way to bleed the remaing CO2 in the magazine. Was difficult to get the bottom screw out. Not enough CO2 to cycle the charging handle and fire doesn't mean its completely empty. Was 86 degrees outside, took a lot of effort to get the bottom screw off just to hear an enemic Phht of CO2 once the bottom screw was loose enough. The box clearly states 52 shot magazine. Umarex and Pyrmayd both claim 60 (only load with 40 though). So which is it? It can't be both. If 33% of the magazines capacity is unusable, its a major design flaw.
Get the Umarex speed loaded. Its cheap plastic, but mine works really well. Shipping was too slow. I'm less than 400 miles from Solon Ohio. Ordered it on a Sunday, it was in stock. It didn't arrive until Saturday. Should have shipped on Tuesday at the latest, didn't ship until late Wednesday. Free shipping wasn't worth it. I can't fire it where I reside, I take my air guns to a weekend house I have out in the country. I leave on Fridays to go there. So I had to wait an extra week to fire it. Google maps says its a 2 day bicycle ride from my house to Solon. I would have been faster to ride my bicycle there and back than PA's shipping was. That's just pathetic. If Pyramyd can't fix their slow shipping issue, I don't see me ordering from them again.
10 of 226 Umarex MP40 Reviews
Sep 21, 2025
By Peter
Verified BuyerVery realistic replica
I added a strap. I think it should be an option when purchasing. It definitely completes the look
I shoot my MP40 at 68/70 feet. Very accurate even at that distance. Tons of fun. I bought 3 mags so the fun continues even while loading.
Almost everything. The weight and realism are wonderful. The feel of the mild recoil when firing. The accuracy and just pure joy of shooting this thing... We had so much fun with it, while we were shooting actual firearms, that I wished I had bought 2 or 3 more mags for this little guy. What a blast and a work of art too.
I wish the magazine was easier to load or had a reservoir that could refill once the follower was held down, or include two magazines with the gun. Aside from that, don't change a thing!
Be patient at first. Reference, but don't "read" the manual, as there may be errors. The magazine is easy to get partially in backwards, so don't force it until you get the hang of it, then you can slap a new mag in without thinking about it. Have fun! We had a range day on my brother's property and this bb gun was the star!
Aug 06, 2024
By Michael
Verified BuyerThis thing is fun to shoot! It's also a very good replica. Everything worked perfectly, right out of the box. I found it to be super easy to load. The opening to load BB's in the clip is larger than any of my other 5 guns that load that way. Nice. You get a good number of shots per cartridge load, too. Accuracy is pretty good. I've gotten good at knocking cans off with hip shots. Fun!
I don't think I'd change a thing, really.
If you have a BB speed loader, you can actually use it to load the clip. Just hold it against the loading opening & squeeze them in. It's a little tricky at first, but much faster than loading by hand!
Looks
Real pain loading c02 cartridges without wasting alot of it.
Fix it so the c02 goes in without a big problem.
Looks
Real pain loading c02 cartridges without wasting alot of it.
Fix it so the c02 goes in without a big problem.
Overall authenticity, reliable operation and accuracy.
I would change the owner's manual, page 8 CAUTION states: "Never load the airgun until you have verified it will discharge CO2 properly". Page 7 states: "if the airgun does dot make a popping noise after pulling the trigger, the CO2 is not being discharged. When the magazine is charged and locked into the receiver (but not loaded with bbs) and the trigger is pulled, there is no release of CO2 (or popping noise) Apparently there was a design change so that the airgun will not release CO2 when the magazine is empty of bbs, a good thing but they need to update the instructions to reflect that change. I ended up blowing out the magazine seal in an attempt to verify that it was charged not having heard the CO2 capsule(s) being pieced. PyramydAir could not supply me a new seal, they wanted me to return the whole airgun for warranty work, I found a suitable metric o ring (21mm)I think. The airgun has been working ever since.
The owners manual is out of date (apparently)
I received my mp40 to day and was it a gas . Once I figured that i was putting the mag I back wards I had a great time . Pyrimid air that you for getting to me so fast 4 days to Texas, you all did a great job thank you so much my sons love it. Thank you agin. It was worth the money.
Nothing that I would change I red that ther was no way I could hold the mag spring back long enough to load it, I found lock on one side at the rear of them to hold it back, easy to lock it for loading, perfect.
No nothing else its a great gun to own, they thought of it all, lock was probbly there all the time no one probbly never noticed it thank you agin.
If you don't own, you need one
Easier reloading
Nice gun. Good replica. Very convincing. Umarex makes a fine airgun. It's fast, and powerful for CO2. It works very well as long as you keep it clean and magazine dry.
Stronger magazine spring.
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Jul 17, 2026
By David
Love the Weight Love the Realism Love the Full Auto Price is Fair Customer service here is Great
1st thing People are asking to BRING BACK THE SPECIAL EDITION WEATHERED LOOK MP40! 2. Add Strap 3. Add 2 extra mags If you do this, I know price would jump, but people will buy the kit! It’s a lot easier to buy that than to buy it all separately. They will sell!
Load 45-50 rounds I haven’t had a jam yet. Oil the gun like a real gun. The gun will thank you. Add a dab of oil to the CO2 before inserting. It seals the CO2 and keeps from mini leaks. Can get maybe another half mag of shooting.