I have used Gunbroker. My sale went thru Tin Star Shooting Range.
They ship USPS if the FFL will accept USPS. I had no problems at
all with the sale/transfer.
Mine are older Howard Leight Impact. Stereo pick ups and auto shut off are a must. A phone and accessory jack is nice. I have tried others and I like these best.
Any of the personal inventory or home inventory management programs
will do this, pictures and video in most formats are allowed. Some insurance companies (home owners) will give there verison to policy holders at no cost. The programs allow the option to backup to a CD or online...
Some things that will cause a 'not approved' with the NICS are
common/similar names, (ie: Jones/Smith) or suffixes to those common/
similar names. The SS# is not required on the paper work, it can be used
to verify your identity when using NICS and may cause an otherwise
not approved to be...