Posted: 11/20/2013 3:19:04 PM EDT
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Bought a Glock 19 earlier this year. Just got around to firing it. To facilitate using the mag release and slide stop/release more efficiently I had a certified installer install the extended versions of each. These are the only modifications I have had and intend to have done. What was I doing again? Oh yeah, the problem....
Every couple rounds the slide locks back. What's more likely? jacked up installation or jacked up part? |
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Hmmmm.... extended slide stop lever. I would be willing to bet that your thumb is slightly riding it during the cycle. Simple fix, try a different grip. I had the same problem because I have rather large hands. I ended up placing that thumb on the outside of my wrist. A bit unorthodox, but it works.
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I've done the opposite. On my 17L and 34, I've removed the extended slide stop just because my grip was inadvertently locking open the slide. Remove the slide. Wiggle the slide stop to make sure it moves freely and has spring tension. If it looks/feels ok, it's your grip. |
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Quoted: My thumb was my first supsicion as I too have fairly large hands, especially for a short guy. I'll check the slide stop tomorrow when I clean. I'll adjust my grip next time and see if that works. |
| It is almost certainly grip-related. You are inadvertently hitting the extended release with your thumb. The extended relase was designed for the 34/35. They tend to be more problematic on the smaller framed guns because it is easier to hit it accidentally. Try shooting the pistol left handed... |
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Quoted:
Hmmmm.... extended slide stop lever. I would be willing to bet that your thumb is slightly riding it during the cycle. Simple fix, try a different grip. I had the same problem because I have rather large hands. I ended up placing that thumb on the outside of my wrist. A bit unorthodox, but it works. "Sig grip" places you R thumb on your L thumb knuckle, you aren't far from that. Posted Via AR15.Com Mobile |
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Quoted:
Finally did a complete tear down and got some decent range time. It was the slide stop, so I reinstalled the stock stop and all problems were solved. Nahh. It must be your grip. 
When my 1st Gen Glock started doubling, everyone told me it was something I was doing wrong. Just like in your case, it turned out to be a mechanical problem. If Glocks really were as sensitive to grip issues and limp wristing as some people believe, Glocks would be considered an unreliable POS (which they definitely are not). If we were talking about an XD or XDM with that poorly placed, little grip safety, I can understand how grip would be the first and most likely thing that someone would suspect. It always amazes me that the biggest Glock fans are the first ones to think that any Glock problem has to be the operator. It does not compute. Good job on finding the issue and proving once again that Glocks are one of the most reliable and best designed guns out there. |
