AK cycling issue

[gatorjames85]

I was shooting my InRange hungarian AMM build the other day and had it fail to cock the hammer after one shot. It had chambered another shell and gone into battery. This is the only problem I have had in about 200-250 rounds. You guys think this was an ammo issue or what? I was shooting wolf black box fmj at the time.

 

[Effigy]

Hmm. Have you stripped it and inspected the trigger assembly? Assuming the trigger is working correctly, I suppose it could have been an underpowered cartridge failing to cycle the bolt completely.

 

[Hizzie]

If it chambered a fresh round then it should have gone back far enough to cock the hammer. Remove topcover, with the rifle UNLOADED cycle the bolt and dry fire the rifle several times. Is the disconnetor properly "handing off" the hammer to the trigger? What you described sounds like the hammer following the BCG into battery.

 

[gatorjames85]

It only happened that one time. I immediately pulled off the dust cover and looked at the fcg and bolt/carrier. I couldn't find anything wrong and it shot fine before and after. I just don't want to have to worry about it doing that if I am using it for self-defense.

 

[The Watchman]

Do you happen to have a recoil buffer? I had a cheap one on mine and sometimes it caused it to do funky stuff, I replaced it with a blackjack buffer and now it's fine.

If that's not it then check your springs on your trigger group. I don't know exactly they're called but make sure they are lined up correctly so that both sears are catching properly.

Both these issues were on my Hungarian.

 

[CnRnut]

Do you have a G2 fire control group?
They had a bad batch a few years back that had out
of spec. spring pockets.(to deep). This would not put
enough spring pressure on the disconnector to catch
the hammer.

 

[gatorjames85]

Do you have a G2 fire control group?
They had a bad batch a few years back that had out
of spec. spring pockets.(to deep). This would not put
enough spring pressure on the disconnector to catch
the hammer.

it does have a g2 fcg. How can I tell if it has this issue?

 

[Nugilum]

*From TAPCO

TAPCO, Inc. G2 TRIGGER GROUP PRODUCT SAFETY WARNING

We have determined that during the period between October 1, 2008 and December 31, 2008, G2 trigger groups may have contained disconnectors that have a disconnector spring hole that is too deep. Use of these could result in a rifle malfunction and should be checked immediately.


NOTE: The spring hole has a conical point and the measurement should be made from the shoulder where the spring will rest, not the point of the hole.

Returns should be sent to:
TAPCO G2 Return/Exchange
3615 Kennesaw N. Ind. Pkwy.
Kennesaw, GA 30144

Or, contact your Sales Account Manager for additional information

Thank you,

TAPCO, Inc.

 

[The-Reaver]

Why am I picturing worst case scenario run away gun with this issue?

 

[gatorjames85]

TAPCO, Inc. G2 TRIGGER GROUP PRODUCT SAFETY WARNING

We have determined that during the period between October 1, 2008 and December 31, 2008, G2 trigger groups may have contained disconnectors that have a disconnector spring hole that is too deep. Use of these could result in a rifle malfunction and should be checked immediately.


NOTE: The spring hole has a conical point and the measurement should be made from the shoulder where the spring will rest, not the point of the hole.

Returns should be sent to:
TAPCO G2 Return/Exchange
3615 Kennesaw N. Ind. Pkwy.
Kennesaw, GA 30144

Or, contact your Sales Account Manager for additional information

Thank you,

TAPCO, Inc.

I don't think it has this issue. It was built before then as part of theakforum ser group buy. Also, the fcg was made by gordon tech, not tapco. I will break it down later and see if I can find anything wrong with the disconnector or any of the fcg springs.

 

[mshootnit]

Make sure your trigger group pins are all the way in and held firmly by the shepherds crook or retaining spring. If you cant find anything wrong, then just make sure when you pull the trigger you give it a brisk sweeping motion. This ensures that you are bringing the disconnector into position so as to catch the hammer as the bolt brings it back.

 

[animator]

It won't run away. Hammer follow situations don't create enough momentum of the hammer to strike the firing pin with enough force to activate almost all primers out there. Of course, it's always a possibility, but a very remote possibility.


And in the event the rifle did run wild, simply releasing the trigger would stop it, assuming the trigger and hammer are functioning as they should be.

 

[gatorjames85]

I was getting hammer follow some of the time when I was hand cycling it. I think I know how to fix it, though.

 

[Hizzie]

I was getting hammer follow some of the time when I was hand cycling it. I think I know how to fix it, though.

Fresh Tapco G2 trigger pack and replace Shepard's Hook with a retaining plate should do the trick.

 

[gatorjames85]

replace Shepard's Hook with a retaining plate should do the trick.

Fortunately, it already has one.

Fresh Tapco G2 trigger pack

Actually, I was going to try the fix I saw on the nodak spud and arizona response systems website. Both websites said that it could be fixed by removing some of the metal from the hammer and/or disconnector where they meet.

 

[fyurstarter]

I've had a similar issue with my Yugo M70 that I bought as a kit and had a local gunsmith put together, only mine does it every 10 to 15 rounds....thinking I need to take a look at that trigger group...
On second inspection the hammer on mine ALWAYS follows the bolt forward if I hold the trigger down....

 

[gatorjames85]

I've had a similar issue with my Yugo M70 that I bought as a kit and had a local gunsmith put together, only mine does it every 10 to 15 rounds....thinking I need to take a look at that trigger group...
On second inspection the hammer on mine ALWAYS follows the bolt forward if I hold the trigger down....

Sounds like it's doing the same thing as mine (but maybe worse). If I end up trying the fix I referred to above, I will let you know how it goes.

 

[Hizzie]

I've had a similar issue with my Yugo M70 that I bought as a kit and had a local gunsmith put together, only mine does it every 10 to 15 rounds....thinking I need to take a look at that trigger group...
On second inspection the hammer on mine ALWAYS follows the bolt forward if I hold the trigger down....

Wait. You paid a gunsmith to build you an AK? You paid him so that it would function and not be a wall hanger right? Take it back and have HIM fix HIS mistake.

 

[fyurstarter]

Hizzie- After seeing what he did to my weapon the first time......I'd rather just fix it without having him touch it (or any of my other weapons) ever again.
The front sight assembly isn't pressed all the way back, so the muzzle attachment doesn't lock in correctly, the gas tube is fitted so tight between the gas block and the receiver that I'm going to have to take the dremel to it and polish the back part of the gas tube down enough that it has clearance to come off and go back on without the use of a hammer and pry bar, the hammer doesn't always catch on the sear....I've been tinkering with it and now it works a LITTLE better, but I have a feeling that I could take a small file, my dremel, and some polishing compound and achieve a far better fit.