"I am in love with this weapon, it's quickly became my favorite side arm. I'm my opinion the weapon's strongest feature is it's speed. In CQC situations against players with AEGs, I find my scorpion consistently out shooting them. Not only in rate of fire, but in speed of operation. I've seen opponents at the same time they've seen me, both pulled the trigger at the same time, and the scorpion out preformed their AEG.
A lot of people are pointing out some pretty basic flaws, so let's look at those.
Stock: besides looking really cool it's almost a joke. Not saying you couldn't make use of it, but I found that removing it was the best option. Every holster I found that works requires you to remove the stock, likewise with forerails for grips and cameras. The weapon feels more maneuverable, and sturdy with out it. Besides that I've noticed that the stock rubs the paint off of the weapon at the point where it locks to the front sight, and could cause rust.
Magizanes: the mag that comes with the weapon is great, though small. You will run mags dry quickly, I recommend getting at least 2 extra. I've played with both the 20 round, and the 40 round. In my opinion I suggest investing in the 20 round mags. My 40 round never has enough gas to get through all 40, (running green gas) and over all I think the 20 looks and feels better. (One warning) I broke 1 mag by letting the spring slam home with no bbs loaded, cracked the plastic and now leaks. Be careful while loading, and don't let the spring slip without bbs to cushion the slam. I also recommend a drop bag, the mags feel fragile, and I'm not comfortable dropping them.
Hoslter: lot of people saying it's hard to find holsters. Brain Exploder has a paddle holster that seems to be the best option. The weapons stays where I need it, looks great, and feels great when running and drawing. You can't use the stock with the holster, but it works with both mags, and a forgrip.
"I picked up this gun to run as a secondary paired with a HPA sniper setup.
Consistent accuracy and grouping (In Semi)
Sturdy Externals (All metal body)
Smooth blowback action
Intimidating full auto
Decent gas efficiency
No mag wobble
Wire stock is flimsy, after folding a couple of times one side bent then broke. (I picked up real steel version for the VZ.61 Pistol and it fits perfectly for about 50 dollars online)
Internals are polymer, while it survived a mil-sim event and firing around 200 shots that's nothing special.
Orange Tip is not removable, needs to be sanded filed or painted over to remove.
Hop-up uses a special tool to adjust and is quite awkward to get to, requiring you to drop the magazine and open the bolt.
As far as I'm concerned, for a realistic small sized GBB sub machine-gun this thing is great. It works out of the box looks great, feels good in the hand, and isn't too unwieldy or heavy to fire one handed. Mounting a sling can be difficult and good luck finding a holster setup that lets you keep the stock on and mag in. I rigged some zip ties through the holes on the bottom of the grip and mounted a sling that way. All said and done, I got a ton of compliments and a couple of confirmed kills out of a gun I ran as a dedicated secondary. If they got rid of the pot-metal stock this thing would easily be a 5/5 gun. Even without that, it's still worth a look if you enjoy older style Czech gear.
"I purchased this gun a few months ago and I have to say it has definitely exceeded my expectations​. The gun is extremely well built really solid no loose or cheap feeling parts and it has that realistic heft to it. The magazines for this gun are small and only hold about 22 bbs and with this guns 21 rounds a second you'll go through these mags like crazy. However they do make extended mags that hold around 40. The mags hold a good amount of gas enough for about 1 1/2 mags (I use propane so your results might be different) filling them though is quick and easy and I have never had them jam up on me. The sound this gun makes when shooting is fantastic nice and loud with a good kick due to the blow back action. The stock on it is ok I prefer using the gun in pistol mode because the stock isn't very comfortable when using it but it's good to have just in case you need it which will be very rare (it is a machine pistol after all). The gun itself is made mostly of metal except the upper part and hand grip which are a very dense polymer. If you don't like polymer you do have the option to buy a metal upper just keep in mind the gun is pretty hefty without it. All in all this is a very solid airsoft gun I highly recommend it if you like playing CQB games or even regular outdoor games too. Well worth the price you definitely get what you pay for.