Glock 40 MOS light striker

[Moparman485]

Gen4 Glock 20 striker assembly on right, And what the assembly is in my G4 Glock 40 on the left. Not exactly scientific, but the one from the Glock 40 “feels” less heavy of a spring

 

[O4L]

It sounds like someone got carried away with modifications, making this pistol unreliable.

My guess would be a light spring or trigger bar mod, or both, causing the problem.

 

[Moparman485]

I don’t doubt that at all. Hence why I’m gonna probably go back stock in most, if not all, of the parts. But I want to find the trouble piece first. Then see how the rest feels with it functioning correctly. This won’t be a competition gun, it will be for range, defense, and as a primary hunting pistol (for when I’m brush busting where a long rifle isn’t feasible). So reliability is the most important aspect

 

[Moparman485]

Ok. Everything ok reading online, is that my Glock 20 G4 and this g4 Glock 40 have nearly interchangeable parts (at least the parts that May be at fault). Anyone know for sure that that isn’t true? The parts have the same part numbers as each other. I’m thinking if I swap one component at a time from the 20 to the 40, then I can find the trouble part and get it the heck out of there. Hha.

 

[O4L]

Ok. Everything ok reading online, is that my Glock 20 G4 and this g4 Glock 40 have nearly interchangeable parts (at least the parts that May be at fault). Anyone know for sure that that isn’t true? The parts have the same part numbers as each other. I’m thinking if I swap one component at a time from the 20 to the 40, then I can find the trouble part and get it the heck out of there. Hha.

That is what I was going to suggest looking into.

I would try the 20 striker spring in the 40 at least.

 

[Moparman485]

Will do. Gives me an excuse to hit the range again. Kind of rained on the parade to take out the new “baby” and it had more light strikes than fires.

 

[Moparman485]

Alright. Just swapping the striker assembly from the 40 to the 20 is hugely noticeable difference in both the sound and pull weight of the trigger. Maybe that’s it. Luckily I need to burn up a bunch of fmj stuff to reload anyways. Haha.

 

[Gunbuffer]

I would start with the striker and striker channel. Make sure no oil or debris are in the channel. It needs to be bone dry.

I'm wondering if they put a light striker spring in it? That will cause LPS, but reduce weight. I used to do this on comp guns, but I used Federal primers that were very soft. I still had LPS's on occasion.

If they replaced the trigger bar spring with a light one, that would cause them too. That's a place to start.

This is good info. plus there may be plunger/striker interference. You can see this if there galling type wear on the notched in the middle of the plunger when removed from gun. Start with a total strip clean of the slide.

 

[druryj]

@druryj is my go to guy on Glocks. Let's see if he chimes in.

Jut restore it to stock, particularly new OEM springs and then clean and lube, and watch it get all better. Why screw with something like a lighter striker or spring when that is mostly a solution to a problem that doesn’t exist? Lots of so called “upgrades” aren’t. They are really just transfers. As in they transfer your money to the guy selling the “upgrades” to you.


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[Moparman485]

I totally agree. I don’t mod my pistols, this one just came that way.