Glock firing pin disassembly for cleaning.

We have successfully test fired your unit using Remington high velocity 40gr round nose ammunition.  We have tested the design on 10 different brands/models of .22LR ammo.  Three of these would not work 50%, two were 95% with the other five perfect.  We found that several brands were considerably "dirtier" than others. We have done a continuous 2,000 round test using the Remington ammunition with virtually no build up of residue in the firing pin hole. Using other brands, such as CCI, it was almost immediately dirtied and soon fouled.

Removal of the back plate to clean the firing pin and hole is quite easy with our design:

1) Using a pair of small needle nose pliers, grip the firing pin spring guide rod's head just out of the back plate, pull it out of it's hole and displace it slightly upward out of the hole.

2) Use a straightened paper clip to depress the back plate detente pin thru the half round hole at the right side of the back plate.

3) Using due care for safety and not to lose the parts, pull the back plate down and out of the slide. CAUTION:  The firing pin spring and guide rod are under extreme pressure and can cause serious injury.  Cup the hand holding the slide over its back with it pointed down at a soft towel.

4) Once the plate is out, the parts can be removed.

Notes on re-assembly:

1) DO NOT USE HEAVY GREASE to lubricate the firing pin in its hole.  This will cause "hydrolicing" of the pin with loss of energy and thereby cause non-detonation of the cartridges.  Light oil such as LPS 1 or 2 is recommended.

2) After putting the firing pin's 4 parts back into the slide, partially slide the back plate in until it stops against its detente pin.  Use the small needle nose pliers closed against the back of the guide pin to depress it down and just under the back plate.  AGAIN CAUTION: The firing pin spring and guide rod are under extreme pressure and can cause serious injury.

3) Now depress the detente pin into its hole while lightly pushing the back plate up into position.  You should hear the detente "snap" into place.  NOTE: The rear plate is a very close fit to the slide - "windowing" binding will occur if the plate is pushed in any way but perfectly straight and true.

4) Using the small needle nose pliers, replace the guide rod into its hole in the back plate.

DO NOT USE FORCE IN ANY OF THESE STEPS - If force seems necessary you are doing something incorrectly - stop, relax, re-read the instructions and try again.

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