Hey, my the upper receiver for my DBoys M16A4 unfortunately broke in a couple places so I am looking for a replacement. I am either trying to replace the whole receiver (up to ~$50) or just the upper receiver if someone happens to have the same model (hopefully for less than $50 :)). It's the grey receiver with the unlicensed FN markings, not the black one that the ones sold in the U.S. have (I bought it from a Chinese site when it first came out :)). If doesn't have to be a DBoys receiver, just one that's also the G&P type and looks similar (e.g., standard M16 / M4 receiver). Let me know if you have something similar you're selling - thanks!