Pistol Place reader R-Gun Pete got an Umarex MP40 on Father’s Day. Lucky man – I got another ecard! But, what did he think of it?
The Umarex Legends MP40 was released in Canada in early June and my BB machine gun arrived just in time for Father’s Day. After opening the box and admiring this nice specimen for a little bit, I managed two complete cycles on the day I received it (4 CO2 cartridges and about 350 BBs).
Basically this will be a first impressions post.
This submachine gun is a realistic and weighty replica.
The magazine must be prepared with 2 CO2 cartridges and the instructions mention that it holds 52 BBs. In my case I decided to use only 50 to have a round number.
All the shooting has been done offhand, standing up and using the shoulder stock. First I shot on paper targets from two distances: 15 and 25 feet.
Not knowing the accuracy of the MP40, I started at 15 feet to make sure that I would not shoot outside my trap.
From the box, it was shooting a bit low and to the left. Flipping up the second rear sight took care of the elevation. For the windage, I discovered that placing the bullseye in the gap between the front blade and the left air space gap of the rear sight was giving me a point of impact where I wanted it.
The adjustment shots were made in semi-auto. The next step was to continue the same way for several more shots on a fresh target. Being confident that all the BBs will be kept contained in the trap I proceeded to have several full automatic bursts which were surprisingly bunched close together.
I moved out to 25 feet and continued shooting in semi-auto for the balance of the session. The system works well and will not waste CO2 because the trigger will just produce a click if there no BB present in the top of the mag (this means that the gun stops shooting on the last shot). When a fresh mag is re-inserted, the cocking knob is pulled to make the gun ready to shoot.
With a few full-auto bursts and mostly semi-auto shooting I was able to get close to 4 mags of 50 BBs for a total of approximately 200 without any problem. It should be noted that at the end the gas pressure was not enough to recock the striker, so for the last few shots I recocked the gun by hand for each shot until I felt that it was getting too slow. After removing the mag, I saw that only a couple of BBs were left unfired. When the cap was removed it could be felt that there was some pressure still in the reservoir.
I would say that realistically about 175 good blowback cycles could be achieved.
For my second session, I moved to my garage to engage pop cans. This time I had to split my session in two parts with a gap of several hours between. In the first part, I used a mix of semi and full auto for 2 mags and in the second part a few auto bursts and mostly semi-auto. It seems that the full-auto made a difference because this time I obtained only one full mag (#3) before starting to have some problems after only a few shots on the last (#4). The MP40 is brand new and should not have leaked CO2 during the time I was away, so it is probably the use of the full-auto that caused a lower number of shots (about 150 this time).
This would have to be confirmed by trial, but I suspect that using only full-auto will probably get 2 mags or less of usable shots.
This picture shows the paper targets covered in the previous text. The pop cans are not shown here but take my word that they were pretty much destroyed. The can lid shown in the upper right corner is from the full-auto test that will be explained a bit later in the post.
As for the problem I had at the end of my 2-part session, I noticed that there was no impact in my trap after a few shots on my last mag. After removing the mag and pushing a wooden rod through the barrel I found 3 BBs stacked together.
With the mag removed the breech is easily accessible to clear the barrel.
I suspect that there was not enough pressure to push the BB out of the barrel but there was enough pressure to operate the blowback to recock the gun. Since there was a BB present in the top of the mag, the trigger worked and a BB was then shot in the rear of the first with a repeat for the third BB.
Anyway when I unscrewed the cap there was barely any CO2 pressure left.
Some people might be wondering about the trigger pull. It is mentioned in some reviews as being heavy, and there is some truth to it but it is not overly bad. It is certainly not in the same category as a Colt 1911 or Tanfoglio Witness single action trigger feel but it is relatively easy to get used to it.
The other complaint is about the lack of a lock for the BB follower but this can easily be solved by using a small hook that helps to hold it in place during loading. I made mine from a small leftover piece of oak hardwood flooring.
To complete my post I decided to see how many mags the MP40 would run in full-auto. I was able to get 3 mags of 50 shots each without any problem. I pushed the limit by putting 10 BBs in the 4th mag and after a short burst it started to have BBs stuck in the barrel. After that test it seems that, shooting small bursts at a time, it would be possible to get around 150 shots. On the other hand, continuous fire might reduce that number.
In conclusion, for airgun collectors the MP40 is a nice addition that has an historical connection to a legendary model. Expectations should be realistic; this is not a competition target airgun but a very nice plinker.
P.S. I had a piece of leather at home and I thought it would be a good idea to make a sling for my MP40. This is the result.