Hk usp compact

[Airsoftman112]

I bought this gun a few weeks ago and it just stopped working, I have oiled it I just don't know if anything is missing out of it. I think the piston is missing but I'm not sure. If anyone has got this gun can they send me a picture of the inside of what's in the slide thanks

 

[scorpia4]

If the piston was missing it wouldn't have worked in the first place.