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Picture of HayesGreener
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I have a student with a Glock Gen 5 9mm. He has fired about 200 rounds with it and it works fine for him while shooting. While doing malfunction drills with it about 50% of the time the slide will not unlock to eject a round. By pulling and pushing on the slide a few times I can get it to unlock and operate. This only occurs when there is a loaded magazine in the pistol and the trigger has been pulled. It feels like something is binding but then lets go. What gives? Could it just be my dummy rounds?


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Posts: 1869 | Location: Florida Panhandle | Registered: September 27, 2009Reply With QuoteReport This Post
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Don't know about your dummy rounds, but I've had the same problem with some of mine. Primarily the solid plastic type. Don't recall if it happens with the premium spring-loaded.

Hard to eyeball in advance, but the round usually looks a little rough and/or beat up in the base/rim area. Never bothered to examine the specifics of why. I just chuck the dummy round in the trash and replace it.


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Posts: 3923 | Location: Northeast | Registered: June 29, 2006Reply With QuoteReport This Post
Freethinker
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I believe the best dummy rounds available are the S.T. Action Pro. They use real cases with solid plastic inserts. They are extremely durable and last a long time before becoming so battered as to be unreliable.

https://smile.amazon.com/s/ref...eywords=dummy+rounds

(Note that they are not snap caps. The primer cups are hollowed out.)




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Posts: 37143 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
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Sounds very much ammunition-related to me. Try some snap-caps, something with a brass base to grab, rather than plastic.
 
Posts: 1337 | Registered: September 13, 2006Reply With QuoteReport This Post
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Picture of HayesGreener
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quote:
Originally posted by sigfreund:
I believe the best dummy rounds available are the S.T. Action Pro. They use real cases with solid plastic inserts. They are extremely durable and last a long time before becoming so battered as to be unreliable.

https://smile.amazon.com/s/ref...eywords=dummy+rounds

(Note that they are not snap caps. The primer cups are hollowed out.)

Yes those are what I am using but they have had a lot of use. I am just puzzled why it is only a problem in the Gen 5 Glock. Perhaps the tolerances are tighter in the Gen 5. Thanks you all for your thoughts.


CMSGT USAF (Retired)
Chief of Police (Retired)
Florida Class K Licensed Instructor
NRA Certified Firearms Instructor/RSO
NRA Certified LE Handgun/Shotgun/Rifle Instructor
SIG and Glock Armorer
 
Posts: 1869 | Location: Florida Panhandle | Registered: September 27, 2009Reply With QuoteReport This Post
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