Hyjack bolt-lock

Item #: SCP-XXXX

Object Class: Safe

Special Containment Procedures: SCP-XXXX is to be contained within a specialized containment locker in a safe wing of Site-20. Memory foam is to surround SCP-XXXX on all sides to limit mobility. At no point is SCP-XXXX to be moved except for testing. The locker is to be guarded by one (1) security personnel armed with standard non-firearm weaponry. No firearms are allowed within 100 meters of SCP-XXXX except for the purposes of testing. Testing requires clearance from a level two (2) researcher or higher, no armed security personnel are to be within 100 meters of the testing chamber during testing.

Description: SCP-XXXX is a modern style door bolt lock, with no rust and bearing no mark of manufacturer. Testing for how much pressure it can hold has been denied by Head Researcher Vigelle. SCP-XXXX’s anomalous effects occur when the bolt is moved into a different position, which immediately alters the firing mode of any firearm within 75 meters and disables whatever form of safety feature is active. If the firearm has no/disabled safety feature, the weapon will fire once. No ammunition is spent if the weapon fires by this method. Tests to halt this change by human interaction have failed.

ADDENDUM:
Testing Log XXXX-1: D-5274 was given 1 standard issue handgun, with rubber bullets inside. Subject was told to hold the firearm in the safety position, subject placed his right thumb blocking the safety’s path. Researcher Elli changed the position of the bolt. the safety turned off, dislodging the subjects finger. Subject was instructed to drop the weapon and did as instructed.
Testing log XXXX-2: D-5132 was given 2 standard issue handguns, one with rubber bullets, and one with real cartridges, subject was instructed to hold both firearms, one in each hand, and provide no other influence on them. Researcher Elli changed the position of the bolt. Both firearms had their safety switched off. Subject was instructed to lower the weapons and did as instructed
Testing log XXXX-3: D-5647 was given 1 foundation standard issue hand grenade. Subject was instructed to hold the grenade but exert no other influence. Researcher Elli changed the position of the bolt. No motion present on the grenade. Subject was instructed to lower the grenade to the ground and did as instructed.