The Ministry of Defence has insisted that members of the public are not in danger after it was revealed that equipment including "dummy" hand grenades and bayonets had been lost from Lympstone Commando Centre.
In a response to a Freedom of Information Request, the centre revealed that more than 8,000 items has been lost including 13 dummy hand grenades and 115 bayonets since 2008.
The MoD has insisted that there is no risk to the public and items listed as "lost" could include damaged items or could be the result of poor accounting.
The BBC said the list also included 600 magazine assemblies for the SA80 assault rifle - although no bullets were missing.
A spokesman for the MoD said: "If something is lost it is simply lost to service, not necessarily mislaid.
"The missing hand grenades are inert and not capable of exploding.
"It's likely that they'd been thrown during practice and then couldn't be found later.
"They are actually made of plastic and not capable of harming anyone."