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AR15.COM
8/23/2015 12:46:57 PM EDT
I bought a used Glock 27 Gen4 that the previous owner says only had a few rounds through it.  Yeah, that's what they all say.

I shot the gun and out of every magazine their was at least one, sometime two FTF, which appeared to be a light strike on the primer.  It would always fire the round the second try.

Is there an inherent problem that I should address or is there just something wrong with the gun?
8/23/2015 1:56:36 PM EDT
[#1]
You need to detail strip it to see if someone "made it better" with aftermarket parts.
8/23/2015 3:17:27 PM EDT
[#2]
if you weren't shooting factory ammunition, see if the primers were seated all the way, but most likely what Mr Ronin said
8/23/2015 3:57:36 PM EDT
[#3]
is the slide fully in battery?  i just sent a G43 back to Glock because the slide would occasionally not go all the way forward and i'd get a light hit in the primer
8/23/2015 4:00:47 PM EDT
[#4]
Quote History
Quoted:
if you weren't shooting factory ammunition, see if the primers were seated all the way, but most likely what Mr Ronin said
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Shooting my reloads, but my reloads fire fine in my G22 Gen4.  Don't think it's the reloads, but will check if happens again.

I field stripped it and cleaned today.  It was pretty dry.

Guy I got it from, my nephew, bought it new and didn't shoot it much.  Maybe just needed cleaned and lubed??

8/23/2015 10:10:11 PM EDT
[#5]
You're not seating your primers deeply enough.



Either that, or replace the striker spring.
8/23/2015 10:38:42 PM EDT
[#6]
Quote History
Quoted:


Shooting my reloads, but my reloads fire fine in my G22 Gen4.  Don't think it's the reloads, but will check if happens again.

I field stripped it and cleaned today.  It was pretty dry.

Guy I got it from, my nephew, bought it new and didn't shoot it much.  Maybe just needed cleaned and lubed??

View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
if you weren't shooting factory ammunition, see if the primers were seated all the way, but most likely what Mr Ronin said


Shooting my reloads, but my reloads fire fine in my G22 Gen4.  Don't think it's the reloads, but will check if happens again.

I field stripped it and cleaned today.  It was pretty dry.

Guy I got it from, my nephew, bought it new and didn't shoot it much.  Maybe just needed cleaned and lubed??


Not likely, but only one way to find out.  Go shoot it and if it does the same thing try running some factory loads through it to rule out the ammo.  Also, ask your nephew if he did any "upgrades".
8/24/2015 10:05:00 AM EDT
[#7]
Try some factory ammo.  If you still have issues, replace the striker spring.  Probably wouldn't hurt to go ahead and replace the recoil spring while you're at it just because you don't know the history.  New springs are cheap insurance.

Also make sure the firing pin channel hasn't been lubed.  If it has been, dirt can accumulate in there and cause light strikes.
8/24/2015 10:41:49 AM EDT
[#8]
Quote History
Quoted:
Try some factory ammo.  If you still have issues, replace the striker spring.  Probably wouldn't hurt to go ahead and replace the recoil spring while you're at it just because you don't know the history.  New springs are cheap insurance.

Also make sure the firing pin channel hasn't been lubed.  If it has been, dirt can accumulate in there and cause light strikes.
View Quote


The exactly..... springs are cheap and will make your pistol like new again.  The firing pin channel needs no lube and the Glock in general only needs a few places lubed.
8/24/2015 11:23:29 AM EDT
[#9]
Quote History
Quoted:
You need to detail strip it to see if someone "made it better" with aftermarket parts.
View Quote


This would be the first step I took with any "new to me" gun. Got a used gen4 G26 recently to replace a POS Shield. First thing I did was completely disassemble and inspect. Replaced the  "-" connector they had put in it but that is all they had done internally.

If any of the parts look worn or are after market replace them with brand new factory.
8/24/2015 11:41:49 AM EDT
[#10]
I quizzed my nephew about the gun and he bought it new about a year ago.  He said he only shot two magazines of ammo through it.

No modifications have been made to it.

I have yet to shoot it after cleaning, maybe sometime this week.
8/24/2015 12:00:31 PM EDT
[#11]
I bought a G21 like that. The trigger pull felt like it was 2lbs and felt great. But sadly when shoting wouldn't ignite the primer and had a lot of Failures to Fire. I put the OEM firing pin spring back in the pistol and brought the trigger pull back to 5.5 lbs and now it goes bang every time