Mechanical låspistol that works for most locks. If you learn to use a låspistol you can open the lock extremely fast (varies from lock to lock).

You sometimes see in movies someone used one to open a lock in seconds. This is not true. It takes time and practice to learn how to use a låspistol & it is advisable to have regular worship at hand because you often need to supplement with picking a couple of battles with the gun.