Here you go, policy as it's posted today.
Policy overview
Most weapons can't be sold on eBay because of strict government regulations and international laws. To safeguard the community, we may also ban other related items that are legal to sell outside of eBay.
Please see the What are the guidelines? section below for a comprehensive list of what is and isn't allowed.
Make sure your listing follows our guidelines. If it doesn't, it may be removed, and your buying and selling privileges could be restricted.
Ammunition
Live ammunition and ammunition components can't be listed.
Allowed
Snap caps
Reloading equipment, including items such as dies and moulds
Restricted
Empty ammunition boxes. The listing needs to say the item doesn't contain ammunition.
Not allowed
Items that are not allowed include but are not limited to:
Blank, dummy, live or inert ammunition
Bullets
Cartridges
Casings
Gunpowder
Hulls
Primer
Shells
BB guns, pellet guns and air rifles
We don't allow listings for Airsoft guns, BB guns, pellet guns, or air rifles because they generally shoot a projectile.
Firearms
Actual firearms can't be listed on eBay. Some accessories for firearms are okay to sell, but only under certain conditions. See the list below for more details.
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Allowed
Calibre conversion information or blueprints
Magazine holders
Restricted
Accessories for guns such as butt plates, cleaning supplies, holsters, pistol grips, racks, scopes, slings, stocks, storage cases or trigger guards. The listing must include a description of the type of firearm the accessory or part is used for. If it doesn't, the listing may be removed.
Not allowed
Items that are not allowed include, but are not limited to:
Firearms regardless of their ability to fire, how old they are, or their status as collectables curio & relic, signalling pistols, and antique firearms
Any item that is designed to discharge any shot, bullet or other missile
Gun parts, including, but not limited to:
Barrels
Choke tubes
Cylinders
Firing pins
Frames, including grip frames
Magazines, regardless of capacity
Receivers, including parts, upper or lower, cut, or 80 per cent receivers
Slides
Trigger assemblies
Parts or accessories for assault weapons. Listings that mention capability with an assault weapon, even if the part or accessory fits non-assault weapons, are also prohibited.
Any listing for a firearm accessory which contains a picture of the firearm itself
Converters (items that can be used to give a firearm automatic firing capability)
Firearm kits that are used to create a firearm
Flash suppressors
Sears
Silencers
Zip guns