AGM M4 GBB not firing

colt · September 21st, 2009, 02:13

Hey guys, my AGM M4 GBB is not firing at all due to the firing pin not hitting the correct place on the mag to release the gas to propel the round. Mags are not leaky, and everything else looks good. It looks like the firing pin's not going forward enough.
Any tips on fixing this?

Ronan · September 21st, 2009, 02:22

What did you do to it colt?

Need more info, is it brand new?
Did you do anything (mod/taken apart/etc)?
Did you try another mag?
Whats the angle of the firing hammer when uncock? cocked?

MOAR INFO

colt · September 21st, 2009, 02:29

Hehe, nothing bro! Worked like a dream for a couple of days, bought it 2nd hand. No modifications at all. I only have one mag unfortunately.
Hammer looks properly positioned, from what I can tell.
Could it be the valve?

Ronan · September 21st, 2009, 02:31

Quote:

Originally Posted by colt

Hehe, nothing bro! Worked like a dream for a couple of days, bought it 2nd hand. No modifications at all. Could it be the valve?

It can be the valve thats 'stuck' in the foward position (thats my guess).

It can also be a problem with the angle of the firing hammer (never heard of that happening w/o the user fiddling with it, etc).

Try pulling on the silver valve button.

Oh and hmnn have you checked to make sure theirs gas in the mag?

Edit: off to bed, tired and am class. I'll check tom to see if you fixed it, if not, theirs a couple things we can do.

colt · September 21st, 2009, 02:42

Thanks man, will let you know.

hondatech · September 21st, 2009, 09:25

Check the pin that holds the hammer into the body. Mine broke in half(!), which allowed the hammer to still be cocked, and drop when the trigger was pulled, but it would fall at an angle and not strike the valve knocker. I replaced the busted pin with a set of G&P Anti-Rotation Links and it's been fine since.

colt · September 21st, 2009, 14:49

I just ordered one of those, just in case. Is there a way to check the pins without pushing them out? I don't want to mess anything up, if the problem is elsewhere.
Thanks!

Jar|-|ead · September 21st, 2009, 15:07

Check your hammer spring..AGM OEM hammer spring is the strongest out of the WA M4 GBB series springs.Oh and I THINK that no other spring will work for the AGM one.Correct me if im wrong.

colt · September 21st, 2009, 22:35

Thanks, I checked the hammer spring, seems to be working fine. As hondatech said, the hammer can still be cocked, and drop when the trigger is pulled, but no round is fired.

Ronan · September 21st, 2009, 23:42

I'm telling yah, no gas in your mag :P

That or your valve trigger thingy (the silver thing) is stuck in the foward position :P

colt · September 21st, 2009, 23:46

There is gas in the mag, and I pulled the valve thing out as much as possible as well. Still nothing ...

The broken hammer pin MIGHT be the issue, but I wonder if there's a way to confirm without pushing the pins out.

Ronan · September 22nd, 2009, 00:03

Quote:

Originally Posted by colt

There is gas in the mag, and I pulled the valve thing out as much as possible as well. Still nothing ...

The broken hammer pin MIGHT be the issue, but I wonder if there's a way to confirm without pushing the pins out.

Would be so much easier if you lived nearby... we could swap parts and trouble shoot it.

Hmnn you only have 1 mag? Would be great to try another mag... or try THAT mag in another AGM.

colt · October 15th, 2009, 12:29

Problem fixed. 2nd generation mag works just fine!
Thanks for all the input.

Ronan · October 15th, 2009, 18:21

Quote:

Originally Posted by colt

Problem fixed. 2nd generation mag works just fine!
Thanks for all the input.

Ah mag issue, the 1st gen one's are crappy.

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September 21st, 2009, 02:13	#1
colt Trader rating Join Date: Mar 2002 Location: BC	AGM M4 GBB not firing Hey guys, my AGM M4 GBB is not firing at all due to the firing pin not hitting the correct place on the mag to release the gas to propel the round. Mags are not leaky, and everything else looks good. It looks like the firing pin's not going forward enough. Any tips on fixing this? __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

September 21st, 2009, 02:29	#3
colt Trader rating Join Date: Mar 2002 Location: BC	Hehe, nothing bro! Worked like a dream for a couple of days, bought it 2nd hand. No modifications at all. I only have one mag unfortunately. Hammer looks properly positioned, from what I can tell. Could it be the valve? __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

September 21st, 2009, 02:42	#5
colt Trader rating Join Date: Mar 2002 Location: BC	Thanks man, will let you know. __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

September 21st, 2009, 09:25	#6
hondatech Trader rating Join Date: Dec 2001 Location: Victoria, BC	Check the pin that holds the hammer into the body. Mine broke in half(!), which allowed the hammer to still be cocked, and drop when the trigger was pulled, but it would fall at an angle and not strike the valve knocker. I replaced the busted pin with a set of G&P Anti-Rotation Links and it's been fine since. __________________ South Island Rangers Airsoft - Victoria, BC

September 21st, 2009, 14:49	#7
colt Trader rating Join Date: Mar 2002 Location: BC	I just ordered one of those, just in case. Is there a way to check the pins without pushing them out? I don't want to mess anything up, if the problem is elsewhere. Thanks! __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

September 21st, 2009, 15:07	#8
Jar\|-\|ead Banned Trader rating Join Date: Dec 2005	Check your hammer spring..AGM OEM hammer spring is the strongest out of the WA M4 GBB series springs.Oh and I THINK that no other spring will work for the AGM one.Correct me if im wrong.

September 21st, 2009, 22:35	#9
colt Trader rating Join Date: Mar 2002 Location: BC	Thanks, I checked the hammer spring, seems to be working fine. As hondatech said, the hammer can still be cocked, and drop when the trigger is pulled, but no round is fired. __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

September 21st, 2009, 23:46	#11
colt Trader rating Join Date: Mar 2002 Location: BC	There is gas in the mag, and I pulled the valve thing out as much as possible as well. Still nothing ... The broken hammer pin MIGHT be the issue, but I wonder if there's a way to confirm without pushing the pins out. __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

October 15th, 2009, 12:29	#13
colt Trader rating Join Date: Mar 2002 Location: BC	Problem fixed. 2nd generation mag works just fine! Thanks for all the input. __________________ There may be no 'I' in team, but there's a 'ME' if you look hard enough.

AGM M4 GBB not firing

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