Product reviews for LEGENDS MP FULL AUTO CO2 .177 CALIBER BB GUN : UMAREX AIRGUNS

Fantastic BB gun.  Looks and feels like a real WW2 German sub machine gun.  Shot count was about 175 BBs on two C02 carts.  I would be more pleased with less shot count but more muzzle velocity which decreases when fired on full auto.  Single shot is very accurate and powerful enough to shatter glass wine bottles and penetrate both sides of a steel can @ 10 yards. The pistol performed as advertised with no jams even with BBs not double stacked perfectly, using Umarex or Daisy ammo.  Magazine is hard to load as there is no follower retainer which has to be held with one hand while trying to place BBs in a small orifice with your other hand.  A bit on the pricey side but less through another vendor.  I am happy with the product.

I was going to send a note to the company expressing how much I love this airgun, but decided to write a review instead (my first). Bottom line? If you enjoy shooting BB guns and just want to have fun, run, don't walk, to the nearest store and get one. You won't be able to put it down. It just feels right. Shoots great. Surprisingly accurate (like that's what you look for in a machine gun). The sales clerk told me the chief complaint was that it used a lot of CO2. It really doesn't. It uses a lot of BBs! You go through both fast, but that's because you pushing 50 BBs downrange in less than 30 seconds. I get about 3 1/2 to 4 clips (150-200 rounds) per 2 CO2 loads. That's good for any gun. It will actually run on one CO2 cartridge if you only want to shoot one or two clips.  But seriously, you won't care. I spend more time looking for fun things to plink. It will literally cut a soda can in half.
My only ... not complaints, but observations... are 1)You have to really cinch the CO2 down, or it won't puncture both cartridges (that's how I figured out it will run on one); 2) Like a knucklehead, I tried to clean the clip with carb cleaner like we did in the service. Unfortunately, the bb track in the clip is plastic and melted a bit. But I was able to disassemble the clip and sand it back to working order. Just beware- no chemicals on the clip; 3) As noted elsewhere, the sling mount comes on the left side of the weapon, when nearly all were on the right so it wouldn't interfere with the charging bolt in combat. But, like the original, it's reversible. So easy fix.
Summary: I'd love to have an original MP-40. But not having $30,000 laying around, this more than satisfies the craving.
Keep up the great work Umarex/Legends! How about an affordable clip loaded CO2 K98? :-) Or an MG-34?!?

most fun I've had since I started collecting bb guns

MP has plenty of bb and co2 capacity  in the magazines.