Umarex Heckler and Koch MP5-K PDW CO2 Powered Airgun (.177 Cal Air Gun)

"This thing is awesome. It has 40 rounds and the co2 will last for about three mags of this so (120 shots) per 12g co2. Please keep in mind the only problem with this gun is that certain 12g co2 cant fit inside and will leak out.

"Got this in and looks amazing! It shoots alright and one CO2 cartage (12g) last you to two reloads. my only complaint is the muzzle, I would have liked a threaded muzzle instead of the clip on one as it pops off during firing and the clip on it tends to jam easily making getting on or off tricky. Still it's a fun little gun to shoot and glad to add it to my collection.

"The best $99 dollars I have ever spent. I'm not really a gun type of person so this is meant for people like me. It feels good, it shoots good, and it seems to be extremely modular. They even allow you to operate the bolt of the gun, even though it isnt necessary for its operation. The only issues I have is that the trigger feels like a staple gun and I can't find spare magazines for sale.

"This is a great, fun BB gun. Shoots pretty accuratly. LOVE it! Very well made.

"this baby is a solid piece of gold! shoots great and i love it 10/10 recommend.

"I am VERY impressed about this MP5K!!

Pros:
1. Solid build
2. Excellent quality
3. Reliable magazine
4. Shoots with no jams
5. Classic H&K look
6. No picatinny rails
7. Good weight

Cons:
1. None!

"This MP5K replica is pretty solid. It is made mostly of polymer, with some of the internals being metal. 40 round capacity, CO2 lasts about 2 mags. It has all the fun stuff too. The gun includes a blowback function, and of course, the all important HK charging handle. The charging handle isn't needed for the gun to function, but when pulled back it will open the bolt as well. You can slap the charging handle, but do it carefully. It is all made of plastic, and will break if hit with force.

Pros-
-HK line of weapons
-Blowback
-40 rounds
-"The Slap"
-Collapsible Stock and Removable Flash Hider

Cons-
-Fully plastic, expected for the price.
-The pins holding the stock on are fragile
-CO2 sometimes leaks slowly for a minute.

Overall: Worth it, entertainment value alone with the charging handle is worth it.

"It shoots great, but I wish the fact that this gun has a plastic construction was made more clear. Decent CO2 usage, though you're going to quickly run considering how fast mags go by. I would have definitely preferred a more solid, metal construction on this, but I think I was expecting too much out of a $100 gun. Functions pretty much exactly how you'd expect, so buy this if you're on a budget but love the H&k platform.

"I wasn't expecting much out of a $99 SMG. But like every other HK product that Umarex has put out, this one is just as good IMO. It's such a dope little SMG. The magazine feels nice when you release it and even cooler smacking it back in. It's got some decent power too. I haven't added any attachments yet but I plant to. I love my HK MP5

"I've had my Umarex H&K MP5-K PDW CO2 BB for 7 months now, still working, and I still enjoy plinking with it. While it's "looks" somewhat authentic as a replica, it's far too light weight because it's ALL plastic (not Polymer) and is a big negative. I shoot real firearms "Run n Gun" competition (5.56 NATO AR / 9mm handgun / shotgun) and a lot of us practice with replica CO2 BB guns (ammo is expensive these days) that act and weigh the same as the real guns, so the Crosman series of Full Auto AR's are the top choice, SIG Sauer CO2's for Pistols, Airsoft shotguns for that part because there are no BB Shotguns. This HK MP5-K is just too light to hold aim well. It's also Semi-auto only.

Measured fps is nowhere near the advertised 400fps, on my Caldwell Chronographe, the best I've ever gotten with a new CO2 installed was 320fps and that falls off fast after 50 BB's, My Crosman CFA-RX1 (M4-A4 CQB type) gets an honest 490fps for the first 150 shots with 1 of 2 CO2's installed (it can take 2 CO2s)

The Biggest Negative is also you can't find spare magazines ANYWHERE! When there were a few around, UMAREX wanted $49 for a cheap plastic mag and that is absurd!

I'm not unhappy I bought it, but all it's good for is plinking and shooting at rabbits.