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Polishing/Profiling the FCG (or just the hammer)


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I've found and lost a thread on polishing or profiling the hammer on a Saiga system.  I've pounded through he FAQs, but I'm just getting bleary-eyed now.  Help me ObiWans; you're my only hope.

I want to do this proactively, and not wait for some manufacturing roughness to catch me by surprise.  Your advice will help, I know.  Thanks.

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The answers are here on the forum but to properly explain the necessary considerations and opinions would take someone at least a half hour or more of typing time.   It takes the combination of the right knowledgeable person being in the right mood to sit down and dedicate a lot of time to writing it and answering the multitude of follow up questions.

 

Shannon of Cobra's Custom used to be awesome about doing this for people, but he understandably got burned out on it after untold thousands of hours spent typing instead of doing what he does best.

 

If you haven't already, try using Google for your searches instead of the search feature here on the forum.    This isn't something that is going to be explained in a few short sentences. It's going to take you putting in the time to do the reading.

 

Here's a link to a Google search of this site to get you started..

 

https://www.google.com/?gws_rd=ssl#q=saiga+12+hammer+profile+site:forum.saiga-12.com

 

Once you've read through the relevant threads, you can change the keywords to find more.   It's not rocket science but it is going to take some time to get a real understanding of what to do and why.   Hopefully you enjoy the process.

 

Finally, I'll leave you with some info from GunFun on the hammer profile to pique your curiosity...
 

 

...

 

Next time, leave enough meat so that the carrier pushes the hammer wing at least 1 /16" lower than the disconnector. Using the factory hammer as a guide is good too. Make it so that the bolt carrier never hits a corner, and make the final angle such that the face of the hammer his hitting the tail of the bolt surrounding the hammer pin squarely. (Tapco starts out hitting at an angle.)

 

 

I am pretty sure there are some pictures of how it should look in the link in my sig line about triggers.

 

 

What matters is whether the carrier pushes it past the disconnector. If it does, and goes a bit past for good measure, it should work fine. If it does not clear the disco, your hammer will ride the carrier home. If it barely engages, then it can probably do so intermittently.

 

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Short answer:

Profile the hammer face to match the original - the hammer is just that, a HAMMER and must strike the firing pin squarely and NEVER the tail of the bolt. The hammer must also be profiled so the bolt can pass over it when cycling the action without binding.

Polishing: LESS IS MORE. just smooth rough engagement surfaces. Polish - DO NOT REMOVE METAL OR CHANGE PROFILES!

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You could always take a look at Cobra's (Shannon) work. That what he does. 

 

http://forum.saiga-12.com/index.php?/topic/90388-ak-saiga-vepr-reliability-service/

 

http://forum.saiga-12.com/index.php?/topic/91223-cobra-customer-pic-thread/

 

Hit up his section of the forum, and other's. There is a world of knowledge to be learned here. AND READ THE STICKIES!!

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