ALL WORK ON GLOCK PISTOLS SHOULD BE PERFORMED BY A GLOCK
CERTIFIED ARMORER - WITHOUT EXCEPTION.
After field stripping the Glock, grasp the front portion of the
receiver and remove the locking block pin with your 3/32"
disassembly tool (see figure 1). Model 17, 17L and 19 do not have
a locking block pin, so skip the above step for these models.
Remember the locking block pin is the first pin to be removed and
the first pin to be reinstalled. If you install the locking block
pin after you install the slide stop lever, you will bend and
damage the slide stop lever spring.
Next, remove the trigger pin. To facilitate trigger pin
removal, the slide stop lever should be moved forward and rearward
while applying pressure on the trigger pin (see figure 2). DO NOT
use any excessive force (such as a hammering implement) to remove
the trigger pin. This will unhook the slide stop lever spring from
the groove in the trigger pin. Remember to remove it from left to
With the trigger pin removed, withdraw the slide stop lever by
pulling it back and out (see figure 3.). NOTE: When reinstalling
the slide stop lever in the pistol, be sure it locks into the
grove in the trigger pin. To function check the slide release
lever, lift it from its rest position and release it - it should
snap back into position crisply. If it fails to do so, make sure
the spring is not binding or bent and check to make sure the slide
stop release is riding in the groove in the trigger pin.
With the locking block pin and trigger pin removed, use your
disassembly tool to raise the locking block (see figure 4). Note:
Pry up from the left side of the locking block to avoid damaging
the trigger bar.
Now move to the rear of the gun and use your disassembly tool
to push the trigger housing pin out (see figure 5). Remove the
trigger housing pin.
With the trigger housing pin removed use your disassembly tool
to apply pressure under the ejector to raise the complete trigger
assembly from the receiver (see figure 6). Then raise the rear
most portion of the trigger assembly above the receiver and
withdraw the complete assembly (see figure 7).
Next comes the trigger assembly take down. Hold the trigger
assembly as shown in figure 8. Pull forward on the trigger with
the trigger bar while rotating the trigger bar counterclockwise
(see figure 9). At this point, the trigger with trigger bar can be
lifted from the trigger mechanism housing.
Separate the trigger with the trigger bar from the coiled
spring by working the hooked end of the trigger spring off the
trigger bar. Separate the trigger mechanism housing from the
trigger spring. Note: Notice that the opening of the spring faces
up in final installation at the point where it is installed in the
trigger mechanism housing - go to the linked diagram below to see
a graphic of the final installation.
finished spring installation
Remove the connector, as shown in figure 10.
For reinstallation, just reverse everything and don't force
anything into place.