Heckler&Koch USP TACTICAL - Manual (Page 17)

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LOCK-OUT DeViCe
All USP Pistols produced and delivered in the U.S. after October 1999 are equipped with
a patented HK Lock-Out ™ Device. This component replaces the lanyard loop insert in the
frame and when engaged locks the handgun’s action by blocking any movement of the
trigger, the hammer, and the slide. The handgun is locked and cannot fire until unlocked.
The Lock-Out control plate is accessible through the pistol’s magazine well (see figure 23).
WArNiNG: Always point the pistol in a safe direction when locking or unlocking the
Lock-Out Device. The pistol should be unloaded and “clear’ before locking the Lock-
Out Device.
Figure 23 Figure 24 Figure 25
Unlocked/FIRE position Turn the key clockwise Locked/SAFE position
to lock the action
Use the two pronged key supplied with the pistol to lock or unlock the pistol as desired.
When the holes on the Lock-Out Device are horizontally positioned the pistol is locked
and cannot be fired (see Figure 25).
CAUTiON: in USP pistols fitted with the Law enforcement Modification (LeM), the
pistol must first be unloaded, “cleared”, and dry fired to release the compressed
hammer spring before the Lock-Out Device can be locked.
When the holes on the Lock-Out Device are vertically positioned the pistol is unlocked
and can be fired (see Figure 24).
WArNiNG: The HK Lock-Out Device is not a substitute for safe gun handling
practices. Never point the muzzle of the pistol in an unsafe direction (at yourself or
others). When the Lock-Out Device is placed in the locked position the slide is locked
in the closed position and cannot be moved! Forcing the slide rearward while the gun
is in this locked position will damage the USP Compact.
HAMMer AND CATCH NOTiFiCATiON
It is highly recommend that all maintenance work be completed by a certified HK
armorer. In 2005, the USP catch was modified to fit the revised USP hammer. Both of the
units pictured below function in the same manner if installed properly. However, a safety
issue is created if the parts are mismatched. Please verify that the part numbers and the
correct assembly are completed before installation. Improper installation or mismatched
parts can result in a severe malfunction. Please contact HK Customer Service for more
information.
Figure 26
New version (left), old version (right)
NOTe: All maintenance should be performed by a certified HK armorer. Though
new parts may fit with older parts, they may not function properly unless fitted by
an HK certified armorer. Malfunctions could cause injury or even death. For more
information, please contact HK Customer Service at (706) 568-1906.