|The following is based on Van Buren and has not been confirmed by canon sources.|
The 40mm rifle grenade is a type of ammunition that was to appear in Van Buren, the canceled Fallout 3 by Black Isle Studios. It also featured in the Van Buren tech demo game files.
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- 40mm rifle grenade, frag
- 40mm rifle grenade, IL
While it doesn't appear in the Van Buren tech demo, it is still present in the game files and can be spawned with the console command CreateEntity Ammo40mm_Rifle_Grenade.amo.