This would be a good product if it had 14mm neg threads on the inside to put it on your gun. My GSG-5, an MP5 variant that is compatible with MP5 stuff, has 14mm neg threads on the outer barrel for a peoce like this to screw onto. However this has no threads for it to screw in, just a big slit. So what i'm assuming is that you have to force it on and then crimp it.
I like the face that the end screws off to reveal the 14mm neg threads it has for attachments, but idk how to get it on the gun. I guess i'll use the little cap for the flashhider thats already on my gun..
if anyone wants to buy it i'll sell mine for $25 plus shippeng email me at