It's impossible to tell from this what your question is. Please rephrase and try again.
Try the receiver
Check the receiver.
Requires in person examination.
On the left side of the receiver.
Oh, dude, I mean, like, the serial numbers on a Diamond Arms shotgun are usually found on the receiver or barrel. It's like trying to find Waldo in a sea of stripes, but once you spot it, you're golden. Just remember, the serial number is like the shotgun's ID card, so don't lose it unless you want your gun to have an identity crisis.
barrel, butt, receiver, under forearm.
They should not be.
Yes
Check the receiver and barrel
you dont
This weapon will need to be appraised and compared against known samples.
Check the barrel and receiver.