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 Post subject: SIG 556 lower disassemble/ reassemble
PostPosted: Sun Mar 21, 2010 5:15 pm 

Joined: Wed Nov 18, 2009 5:49 pm
Posts: 6
Is there a photo tutorial on the Sig 556 lower FCG disassemble and reassemble....the armourer's manual is not real user friendly..... I'm about to Duracoat mine and I need to take it apart


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PostPosted: Sun Mar 21, 2010 6:44 pm 

Joined: Sun Mar 01, 2009 11:18 pm
Posts: 284
Location: Minneapolis, MN
I don't have photos, but the process is pretty easy. A detailed description is on page 109 of the armorers manual, but as you said is a bit hard to follow. Here's a simplification:

1. Punch out the roll pin on the safety lever on the right side of the receiver.
2. Remove the safety shaft out the left side of the receiver
3. Remove the locking spring (AKA safety spring).
4. Pinch the trigger assembly together with your left hand, front to back, to relieve the tension and make it easier to remove.
5. Drift the trigger pivot pin out the left side of the receiver.
6. Lift the trigger assembly out, and reinsert the trigger pivot pin back into it while still pinching it together.
7. Grasp the hammer and main spring with the left hand and apply pressure forward and downward to relieve the tension on the hammer pivot pin.
8. Drift the hammer pivot pin out the left side of the receiver.
9. Slowly release the tension on the main spring and remove the hammer and main spring out of the receiver.

That's pretty much it. Take some digital pictures of how everything fits together properly at each step to assist during reassembly.

Hope this helps...

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PostPosted: Mon Mar 22, 2010 5:37 am 

Joined: Wed Nov 18, 2009 5:49 pm
Posts: 6
jalso wrote:
I don't have photos, but the process is pretty easy. A detailed description is on page 109 of the armorers manual, but as you said is a bit hard to follow. Here's a simplification:

1. Punch out the roll pin on the safety lever on the right side of the receiver.
2. Remove the safety shaft out the left side of the receiver
3. Remove the locking spring (AKA safety spring).
4. Pinch the trigger assembly together with your left hand, front to back, to relieve the tension and make it easier to remove.
5. Drift the trigger pivot pin out the left side of the receiver.
6. Lift the trigger assembly out, and reinsert the trigger pivot pin back into it while still pinching it together.
7. Grasp the hammer and main spring with the left hand and apply pressure forward and downward to relieve the tension on the hammer pivot pin.
8. Drift the hammer pivot pin out the left side of the receiver.
9. Slowly release the tension on the main spring and remove the hammer and main spring out of the receiver.

That's pretty much it. Take some digital pictures of how everything fits together properly at each step to assist during reassembly.

Hope this helps...


Thanks...I appreciate it...


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PostPosted: Sat Mar 27, 2010 9:29 am 

Joined: Wed Nov 18, 2009 5:49 pm
Posts: 6
Actually real easy to do.......thanks


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PostPosted: Sat Mar 27, 2010 11:04 am 

Joined: Sat Feb 27, 2010 10:27 am
Posts: 17
For a more visual approach:

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

This really helped me!


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PostPosted: Sat Mar 27, 2010 12:55 pm 

Joined: Sun Mar 01, 2009 11:18 pm
Posts: 284
Location: Minneapolis, MN
That video only shows a basic field strip. He wanted info on disassembling the entire lower and removing the fire control group.

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