Something happened to my 48? **Update**

I was in my shop shooting my 48 this am, probably shot it ten or twelve times and all was good. On the next shot attempt it wouldn't cock, the sear is not holding the piston back. I've tried several times and it won't cock. The trigger is not set terrible light, probably 2-3 lbs.
This rifle is only about six or so months old but I think I'd rather tear id down myself than send it back. I have a family get together this afternoon so I can't do anything with it, maybe tomorrow.

Any one have any ideas?

Thanks, Justin
 
Okay guys, I bundled up and went to the shop and took this ba$tard apart. This is why it wouldn't cock, should've bought a HW. The next question is where do I get a new piston?

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