I bought this pistol at the start of the year, but I only get a two week warranty from the seller, so if this needs to be fixed I'm on the hook for parts.
Anyhow from the parts diagram here:
http://www.kjworks.com.tw/photo/13185702113.pdf
There is a hook on the bottom of part #23 'Chamber Cover (Left)' that has snapped clean off:
The gun seems to fire fine, cycles properly etc. I can't imagine why that hook would be there if it wasn't functional though. This is a tough question to answer I guess, but should I be ordering this part or should everything be fine as is?