Those who have spent any appreciable amount of time in search of an MP5 on sale know three things. Two are that they are extremely hard to find in the first place and that even when you can find them, the prices tend to be sky-high.  The last is that there are a lot of alternatives to actual HK MP5 subguns, which take the form of MP5 clones and other MP5 lookalikes.  Most of these...