KWA Glock 19, Trigger/Hammer problems

Jam1984 · May 6th, 2009, 15:55

So, I've had a KWA glock for a number of years now. recently it started to display some problems and finally has given up the ghost of life.

At first, it seemed the slide was not returning correctly. Upon pulling the trigger the slide would go back, before getting stuck about just before it pushes the bb into the chamber.

I thought this might be the recoil spring, so i purchased a new guarder one which fixed the problem. only to create another one !

Insert loaded mag (with green gas) when i pull the trigger the slide racks as usual. the round goes firing off into the distance, but the trigger isnt returning to the ready position. ie, cock gun, pull trigger, round goes flying off, slide goes back and forth. Trigger stays locked back. Pulling the slide back again *frees* the trigger.

From looking at the hammer assembly, it appears undamaged. Well lubed, but not too much lube.

I've always run the gun on green gas without any problems, it does this with all the mags ( of which i have 4) I've warmed the mag to room temp and still the same result.

Any help is appreciated !

Cheers
Ben

Qlong · May 6th, 2009, 16:05

When the round is fired, is the hammer locked back or is it up?

Jam1984 · May 6th, 2009, 16:07

up, as i pull the slide back i can feel the slight resistance of it being up.

sushi_boy604 · July 3rd, 2009, 20:10

I have the same problem. Except mine is a KSC G19. My problem doesn't occur after every shot though. I suspected that is has been the gas valves. I haven't tested though but I think its only 2 of the 3 mags that cause this problem. I believe some of my mags might have minor leaks. Thats just in my opinion. When i get home, i will try it out.

sushi_boy604 · August 2nd, 2009, 20:22

After the problem seemed to worsen, i decided to look into it. I suspect that hammer isn't actually pushed back into the firing position thus the hammer is in the "up" position, as noted by Jam1984. Any ideas?

MikeMcNair · August 3rd, 2009, 11:39

i have the SAME issue!!!!!!!!

YouTube - KSC G26 Shooting with issues

bump for helpz..........

sushi_boy604 · August 3rd, 2009, 14:21

When you take the mag out, do you feel more resistance than usual?

MikeMcNair · August 3rd, 2009, 14:22

not sure about the OP, but i can't say that i do. would that indicate something i should look for?

sushi_boy604 · August 3rd, 2009, 15:07

The reason why i ask is because i am curious on where your hammer position is. The reason why i get resistance is because my hammer does not push all the way back after the shot was taken. Thus my trigger doesn't return, makes sense right? If you have the same problem, we need to figure out why our hammer doesn't fully cock after each shot.

MikeMcNair · August 3rd, 2009, 15:12

makes perfect sense. so what could be stopping the hammer from fully going back? increased tension in the spring? not enough blowback?

i am game to brainstorm.

sushi_boy604 · August 3rd, 2009, 19:32

Originally, i thought it was not enough blowback. It might be. Did you happen to upgrade your rocket valve? I think i might have seen problems after i installed a new one.

MikeMcNair · August 4th, 2009, 07:01

stock rocket valve. but i have tried different hammer springs with no luck (guarder and stock.)

in fact, if i put my "good slide" on it (with the AS rocket valve) and my mag with the high flow valve in it, same issue. so it is clearly in the body of the gun.

Steve_U1S · August 4th, 2009, 19:55

There's a good chance that you've got wear in the sear - do you find that your trigger pull has more slop to take-up before engaging compared to when it was new/functioning at optimum performance?

sushi_boy604 · August 4th, 2009, 20:27

Quote:

Originally Posted by Steve_U1S

There's a good chance that you've got wear in the sear - do you find that your trigger pull has more slop to take-up before engaging compared to when it was new/functioning at optimum performance?

Hey steve. I kind of do feel it. The only parts that look worn down to me are part of #94, #78, and maybe #87 and #92. Which of those parts do you think is worn down? Thanks for the reply.

Diagram of KSC G19 - http://tech.airsoftcanada.com/KSC/ksc-g19s.jpg

Steve_U1S · August 5th, 2009, 01:36

It'll be #87 - though wear on the interfacing surfaces of the hammer itself, #94, could also be a culprit.

When you pull the takedown levers to pull the slide off, is the back end of the slide colliding with the hammer rather than gliding off?
I've see a lot of well-worn Gs, especially select fire models, that have to have a small tool inserted to hold down the hammer while removing the slide, as it's worn and sticks up in this manner.

Check that out - but, very likely the sear part #87.
Replacing that will likely bring things right back to spec, by the sound of your symptoms (but I'd like to hear your take on the hammer, as well...)

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May 6th, 2009, 15:55	#1
Jam1984 Trader rating Join Date: May 2009	KWA Glock 19, Trigger/Hammer problems So, I've had a KWA glock for a number of years now. recently it started to display some problems and finally has given up the ghost of life. At first, it seemed the slide was not returning correctly. Upon pulling the trigger the slide would go back, before getting stuck about just before it pushes the bb into the chamber. I thought this might be the recoil spring, so i purchased a new guarder one which fixed the problem. only to create another one ! Insert loaded mag (with green gas) when i pull the trigger the slide racks as usual. the round goes firing off into the distance, but the trigger isnt returning to the ready position. ie, cock gun, pull trigger, round goes flying off, slide goes back and forth. Trigger stays locked back. Pulling the slide back again frees the trigger. From looking at the hammer assembly, it appears undamaged. Well lubed, but not too much lube. I've always run the gun on green gas without any problems, it does this with all the mags ( of which i have 4) I've warmed the mag to room temp and still the same result. Any help is appreciated ! Cheers Ben

May 6th, 2009, 16:05	#2
Qlong Division Trader rating Join Date: Jun 2007 Location: Scarborough, Ontario	When the round is fired, is the hammer locked back or is it up? __________________ Weee!

May 6th, 2009, 16:07	#3
Jam1984 Trader rating Join Date: May 2009	up, as i pull the slide back i can feel the slight resistance of it being up.

July 3rd, 2009, 20:10	#4
sushi_boy604 Trader rating Join Date: Jun 2008 Location: British Columbia	I have the same problem. Except mine is a KSC G19. My problem doesn't occur after every shot though. I suspected that is has been the gas valves. I haven't tested though but I think its only 2 of the 3 mags that cause this problem. I believe some of my mags might have minor leaks. Thats just in my opinion. When i get home, i will try it out.

August 2nd, 2009, 20:22	#5
sushi_boy604 Trader rating Join Date: Jun 2008 Location: British Columbia	After the problem seemed to worsen, i decided to look into it. I suspect that hammer isn't actually pushed back into the firing position thus the hammer is in the "up" position, as noted by Jam1984. Any ideas?

August 3rd, 2009, 11:39	#6
MikeMcNair Trader rating Join Date: May 2009 Location: PA	i have the SAME issue!!!!!!!! YouTube - KSC G26 Shooting with issues bump for helpz..........

August 3rd, 2009, 14:21	#7
sushi_boy604 Trader rating Join Date: Jun 2008 Location: British Columbia	When you take the mag out, do you feel more resistance than usual?

August 3rd, 2009, 14:22	#8
MikeMcNair Trader rating Join Date: May 2009 Location: PA	not sure about the OP, but i can't say that i do. would that indicate something i should look for?

August 3rd, 2009, 15:07	#9
sushi_boy604 Trader rating Join Date: Jun 2008 Location: British Columbia	The reason why i ask is because i am curious on where your hammer position is. The reason why i get resistance is because my hammer does not push all the way back after the shot was taken. Thus my trigger doesn't return, makes sense right? If you have the same problem, we need to figure out why our hammer doesn't fully cock after each shot.

August 3rd, 2009, 15:12	#10
MikeMcNair Trader rating Join Date: May 2009 Location: PA	makes perfect sense. so what could be stopping the hammer from fully going back? increased tension in the spring? not enough blowback? i am game to brainstorm.

August 3rd, 2009, 19:32	#11
sushi_boy604 Trader rating Join Date: Jun 2008 Location: British Columbia	Originally, i thought it was not enough blowback. It might be. Did you happen to upgrade your rocket valve? I think i might have seen problems after i installed a new one.

August 4th, 2009, 07:01	#12
MikeMcNair Trader rating Join Date: May 2009 Location: PA	stock rocket valve. but i have tried different hammer springs with no luck (guarder and stock.) in fact, if i put my "good slide" on it (with the AS rocket valve) and my mag with the high flow valve in it, same issue. so it is clearly in the body of the gun.

August 4th, 2009, 19:55	#13
Steve_U1S Trader rating Join Date: Jul 2006 Location: Toronto, Ontario	There's a good chance that you've got wear in the sear - do you find that your trigger pull has more slop to take-up before engaging compared to when it was new/functioning at optimum performance?

August 5th, 2009, 01:36	#15
Steve_U1S Trader rating Join Date: Jul 2006 Location: Toronto, Ontario	It'll be #87 - though wear on the interfacing surfaces of the hammer itself, #94, could also be a culprit. When you pull the takedown levers to pull the slide off, is the back end of the slide colliding with the hammer rather than gliding off? I've see a lot of well-worn Gs, especially select fire models, that have to have a small tool inserted to hold down the hammer while removing the slide, as it's worn and sticks up in this manner. Check that out - but, very likely the sear part #87. Replacing that will likely bring things right back to spec, by the sound of your symptoms (but I'd like to hear your take on the hammer, as well...)

KWA Glock 19, Trigger/Hammer problems

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