Heckler and Koch H&K Competition MP5 SD6 SMG AEG Airsoft AEG by Umarex

"I bought this a few years ago and it has been my primary weapon ever since. It is incredibly practical, as well as a good conversation starter. I have pu thousands of rounds through this thing, as well as dropping it 8 ft onto rocks with minimal damage. 10/10

"The SMG is quite long with the faux suppressor. Even though mostly plastic, it still has that reassuring weight. shoots great and hop up is almost the same set up as a sniper rifle (left on the foregrip) you definitely won't bump the hop up. I would recommend this for any beginner especially if they are into CQB. The Faux suppressor is removable and I personally use it without, as the bbs tend to bounce every now and then inside the suppressor. Compatible with Most AEG Mp5 licensed mags. I would not recommend "HK slapping" the charging handle as it is made of a weak metal of sorts. Has one small sling point up front and one big belt sling point on the back of the receiver. Overall I still use this SMG for close quarters and love the feeling of the rifle overall.

"The SMG is quite long with the faux suppressor. Even though mostly plastic, it still has that reassuring weight. shoots great and hop up is almost the same set up as a sniper rifle (left on the foregrip) you definitely won't bump the hop up. I would recommend this for any beginner especially if they are into CQB. The Faux suppressor is removable and I personally use it without, as the bbs tend to bounce every now and then inside the suppressor. Compatible with Most AEG Mp5 licensed mags. I would not recommend "HK slapping" the charging handle as it is made of a weak metal of sorts. Has one small sling point up front and one big belt sling point on the back of the receiver. Overall I still use this SMG for close quarters and love the feeling of the rifle overall.

"I just bought this gun and it was very very cool to use and super fun for a first gun you should get it!!

"A sturdy reliable MP5SD6.

The Good.
2 mags, removable mock suppressor that reveals some threads, metal bolt (slap that thing all ya want) sturdy collapsible stock (metal), rubber butt, decent weight, very good accuracy, sturdy sling points, easy access battery compartment.

The Bad.
2 HICAP mags, no burst (but that's ok for the price), tiny battery compartment in the handguard, stock is a tiny bit shakey but wont break, ejection port is nonfunctional (hop up is on the grip to the left side wouldn't be hard to accidentally move it.), non adjustable sling points. (The MP5 with the marksman stock had slingpoints that could be put on either side)

It may look like there is more bad than good but the bad I list are not going to affect the performance of the weapon I'm just a bit picky for the authenticity of the weapons known functions, BUT for the price this thing is so worth it.

"As just recieving this gun, I can only give a proper review from a first hand look. After opening this from it's box, it was sturdy, good weight, and is truly unique in detail. A reliable and retractable stock, great range for CQB, optional suppressor, and overall unique weapon is why I have no regrets saying this weapon is worth your cash. If you are like me and have little experience in upgrading your weapon and only playing with it from stock, then it is perfect for you.

"Great gun, right when I took it out of the box I knew it was a great purchase.

"I put a mosfet burst wizard onto this with an 11.1 matrix 1500 ml straight from the box, it totally impressed me. Well I know it recommends 7.4 lipo but after opening it to find what made it tac so hard for. Well I stil found more that impressed me even further a full rack of iron teeth as well as the pick up tooth. I changed the cilender head with some used mp5 part because the stock plastic one wouldn't last long in full auto. Testing the piston air seal I had to change the air nozzle to make a perfect seal from the stock piston and head. In closing I installed m130 spring using the stock spring guide. Then placing m120 G&p motor in I used it in a long day of scrimmage and made it successfully threw the day with no real issue. Thank you for supplying quality products at fair prices.

"this isnt just some paid review, this gun is solid as hell and if i could upload pictures i would. it will perform well, looks good, and is pretty sturdy for an all plastic construction. good bang for your buck

"very nice looking very tactical only if it was full metal and had no rubber parts to keep the barrel cover in place

"Warning does not come with battery! Disappointed kid on Xmas morning.

"feels sturdy, shoots pretty well. Only issue is the faux charging handle is flimsy. I had it proppped up against the wall but it fell over and something caught the charging handle just right and off it came.

"I bought this SMG and so far it's alright. The hi-cap magazine it comes with doesn't feed as good as some of the other guns that comes with hi-caps. I found that about 5-8 rounds feeds with one full rotation. Sliding the handguard to reach the battery compartment was easy, but when it comes to sliding it back on, it tends to get stuck on the end, so you have to drag it downwards in order the round part slides over the end part.

"It’s pretty good for the price, I got at my local airsoft shop but wanted to out a review on evike.
The gun needs internal customization for outdoor fields but for cqb and indoor cqb it’s perfect, I reccomend getting a better spring as well for motor, piston, piston head, air nozzle and hop up bucking, cheap and worth it upgrades. Also I plan on converting it to an Hpa later on. The internals are pretty cheap considering it’s price pint buts it’s much more cheaper buying separate upgrades then getting the elite version.

"Overall this gun isn't bad. It has a little weight to it, comes with 2 mags, and feels good in your hands. It's pretty much the same as the Elite Force H&K competition kit Mp5 except it doesn't come with an extra stock, the description says it has a higher Fps, and the outer barrel has a completely different look and a mock suppressor.
This gun is pretty good for CQB and the price is affordable. The charging handle is really the only con I have encountered so far, that and the creaking. But again, its a sub-$200 gun and its made from polymer.
I would recommend for CQB games, its pretty fun to play with.