<Tr> <Td> National Intelligence Organization </Td> <Td>--</Td> </Tr> <Tr> <Td> United Kingdom </Td> <Td> British Armed Forces </Td> <Td> 17 (as L131A1), 17T (as L132A1) </Td> </Tr> <Tr> <Td> Police Service of Northern Ireland (PSNI) </Td> <Td> 17 </Td> </Tr> <Tr> <Td> Scottish Police Specialist Firearms Units </Td> <Td> 17 </Td> </Tr>

What is the difference between all the glocks