This is an MP5 airsoft gun made by H&K. It is very sturdy and shoots at 250 FPS. There are no problems with it, I am just selling it for money. It has served me well! This gun is unique because it can be fired either with the SPRING, or semi and fully auto with the ELECTRIC batteries. The batteries are easily put in. The stock extends two different lengths, not counting it all the way collapsed in. It is built very well, and I have never felt like it might break, it is seriously a tough gun. The safety is easy to switch on or off, but it is resistant enough to not get knocked on or off. This is a great gun. Holds 46 rounds! Location: Tremonton, Utah