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  #1  
Old 07-16-2013, 8:49 AM
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Default Bolt carrier and hammer in AK

So I am wondering why there is so much interference between the carrier and the hammer when charging the gun. The gun operates 100% and has had zero malfunctions in the first 500 rounds so I don't want to mess that up.

But it seems to me it would be easier to rack the gun if there wasn't so much interference. Even when the hammer is already cocked the carrier depresses it over 1/8". What is the purpose? It seems to me the hammer is sitting a little high and things would be a lot smoother if there was less interference.

Then again everything is in their intended location so unless the Tapco trigger group sits higher than stock this must be how the rifle is meant to operate?
Thanks for any insight from the experts. I am trying to learn and get things as smooth as possible.
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Old 07-16-2013, 9:50 AM
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It's only an AK.
Since you said its functioning correctly, that means its ok.
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  #3  
Old 07-16-2013, 10:07 AM
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loose specs and tolerances = forgiving
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Old 07-16-2013, 10:10 AM
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This is absolutely normal. Don't screw with anything inside. On a "true" AKM-47" the hammer does sit a little lower, but I won't go into details. If the charging handle is "pinching" you as you cycle it, there are attachments you can bolt on that will give you more of a positive grip. There are some aftermarket spring kits that will reduce the hammer springs tension, but I would not fully trust them to be reliable. Don't screw with the design.
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Old 07-16-2013, 10:30 AM
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It doesn't pinch me and it's doable. It just seems there is more friction than necessary with a lot of metal to metal contact between the carrier and the hammer. The original hammer sitting lower makes sense. Why not at least relieve the angles on the hammer a little so it rides back and forth smoother?
Just asking. Listening to your advice. Not gonna touch it. Though I am a tinkerer.
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Old 07-16-2013, 10:37 AM
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Mod.'s to the hammer striking surface will not help. The hammer spring tension is what you're feeling. The worst you could do is make the gun unreliable, by causing the hammer to not fully reset.
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Old 07-16-2013, 10:55 AM
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Ok, makes sense. Back away from the file...

Thanks
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Old 07-16-2013, 11:44 AM
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in Russia, u don't fix AK, AK go fix u...haha


welcome back 69MACH1 good to see u posting bro!
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Old 07-16-2013, 3:50 PM
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I believe what 69Mach1 is eluding to is the "hammer rate reducer" what ever it's called. it's only on the select fire versions and I would gather that from the design it holds the hammer down a touch further then just the trigger.

Be advised.. Don't go digging one of these gizmos out of a parts kit to install. I't may not be the auto sear or third hole but it's definitely not supposed to be there on a semi auto version
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Old 07-16-2013, 5:48 PM
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My setup does the same thing, but if I ride the bolt as it goes foward, it hangs-up on the hammer. My thought process was, 'Sweet, I now have a bolt hold open device on my AKM.'
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Old 07-16-2013, 8:37 PM
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On my PSL, I polished the hammer surface where the carrier rides. That and a little oil made a noticeable improvement. But the PSL's are a little different then a standard akm.
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Old 07-16-2013, 8:51 PM
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Try getting yourself a milled era hanmer. They have a more fluent shape
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Old 07-17-2013, 6:36 PM
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I would not try to duplicate the efforts of Rifle Dynamics because they have far more experience in tweaking the rifle to gain smoother function. There are videos on youtube showing how they file/polish the hammer for "better" fit and smoother function.

Be prepared to purchase a replacement hammer when you remove too much metal. Your rifle is working fine, don't mess it up

http://www.youtube.com/watch?v=r9yLBnOJaps
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