Whats the difference between these 2 guns ?

[FatCatsDad]

They seem to be the same gun but a different name and different price.

What's the difference ?

 

[AB.boy]

Likely just the clamshell plastic around the action that makes it look like an MP-5 or an AR. I had the top one for a while, it was fairly reliable and fun but very cheap feeling in my hands.

 

[kamlooky]

Ones a male, t'uther be a female..............

 

[GimpyGolden]

Not same.
The Mauser is same as the old GSG-15 and has aluminum receiver where as the GSG-16 (MP5) is all polymer.
Internals basically same same.