Light primer strikes - Glock 20

[mwsenoj]

I am having some trouble with my Glock 20 makin light primer strikes. It only happens a small fraction of the time but it is quite frustrating in the middle of an action pistol shoot. Is this a common and easily diagnosable problem?

 

[Inebriated]

What ammo? I would say get new ammo, then if it's still showing up, get a heavier Striker Spring, perhaps.

Just my guess.

 

[texagun]

Remove firing pin and spring. Blow out firing pin channel with some Gun Scrubber or non-chlorinated brake cleaner. Make sure it is thoroughly clean. Do not oil firing pin channel or firing pin. Replace firing pin and spring. Test fire. If you are still having problems, replace firing pin spring.

See parts 5, 6, and 7 in schematic.

http://www.brownells.com/.aspx/pid=0/sid=858/schematicsdetail/Models-17-39

 

[mwsenoj]

@inibriated it has happened on some cheap steel cased stuff as well as some of my hand loads.

@tex thanks I will try that.

 

[PO2Hammer]

Both of my 20's had a little trouble with that. Neither my 21's nor 20's were 100% with Winchester primers in my handloads. Not sure what the issue was. CCI and Federal primers were 100%.

Keep the firing pin channel clean, make sure your primers are fully seated.

 

[Weevil]

There was an issue with the large frame Golcks having light primer stikes, so they came out with a new trigger bar #4256-1.


http://glocktalk.com/forums/showthread.php?p=17192494#post17192494

 

[njdet354]

Light Primer Hits

Texagun is correct. I had the same problem with my 1st generation Glock 19 I sent it back to the factory and thats what they did. They cleaned the striker channel with Gun Scrubber. Air dry it or blow it out with air. Make sure you get it dry and do not oil it or put any lube in the striker channel.

 

[2zulu1]

There was an issue with the large frame Golcks having light primer stikes, so they came out with a new trigger bar #4256-1.


http://glocktalk.com/forums/showthread.php?p=17192494#post17192494

Trigger bar #4256 was the culprit for light primer strikes on my G20, the G20 SF came from the factory with the 4256-1 and it works great.