Has anyone removed "bullet button" from a Sig 556R ?

[Tank 57]

In process of returning my rifles to their correct free state configuration. Put bullet button in quotes because the 556R has a paddle magazine release. Trying to remove the factory installed block. Removed 2 allen bolts. Appears to also be pinned through the release. One side looks like a roll pin, other side looks like a small rivet head. Tapped pin side with roll pin punch and does move. Anyone run into this ? Goggle no help.

[ar15barrels]

Post pictures.
The standard 556R lower looks to have an AK type mag catch with a hollow end rivet through the lower receiver that holds the mag catch.





To remove a hollow rivet, you drill out the hollow end and punch out the rivet.
The harder part is getting a new hollow rivet of the correct length/diameter so be sure you actually NEED to remove that rivet before you proceed.

I won't even go into how much "fun" AK mag catches are to install but Robert Forbus makes a great tool for $60.

[Tank 57]

Randall, thank you for the help. After seeing the pictures, I believe the catch has a smaller diameter pin inserted into hollow rivet pin. Going to have to think on this one. Of the 8 guns I am returning to normal, 2 S&Ws have been challenging and 2 of 3 Sigs.

[ar15barrels]

Randall, thank you for the help. After seeing the pictures, I believe the catch has a smaller diameter pin inserted into hollow rivet pin. Going to have to think on this one. Of the 8 guns I am returning to normal, 2 S&Ws have been challenging and 2 of 3 Sigs.

That would not do anything.
The hollow end rivet is a solid pivot pin with only the end being hollow.
The hollow part is only the very end where the rivet gets expanded.



Does your gun have the original mag catch and rivet as shown in the pictures above?
If it does, then all you need to remove is whatever is actually blocking the mag catch from moving.
Did the gun get the original rivet removed and then a solid block installed in place of the the mag catch spring?

[Tank 57]

I think it's all original under the block. Going to take another try at it later today. Got frustrated and set it aside before I did any damage.

[Tank 57]

Successfully removed it. What I thought as a rollpin was a setscrew screwed in to hollow rivet. Heavily loctited or seized, would not move. Cut mag block with dremel. No damage done. Will post pictures later. One gun to go. Again thanks to Randall. Not sure if I would have done as well without the pictures.

[ar15barrels]

Successfully removed it. What I thought as a rollpin was a setscrew screwed in to hollow rivet. Heavily loctited or seized, would not move. Cut mag block with dremel. No damage done. Will post pictures later. One gun to go. Again thanks to Randall. Not sure if I would have done as well without the pictures.

If a screw was threaded into what you think was the rivet, they may have removed the rivet and installed a chicago screw instead.
A chicago screw is much like a hollow rivet, but it's got female threads inside.

[Tank 57]

No visible threads in hollow rivet. Rifle now looks exactly like your pictures. And no slot on rivet head. Whoever put that thing on didn't want it to come off.

[ar15barrels]

No visible threads in hollow rivet. Rifle now looks exactly like your pictures. And no slot on rivet head. Whoever put that thing on didn't want it to come off.

Post pictures of yours.
The two pictures I posted are from a magazine article and that is how SIG built the gun.
If yours is the same, then it's how SIG built the gun.
Any magazine lock system will have been added on top of the factory parts in most cases since Sig never made them with fixed magazines.

[Tank 57]

Sorry for slow response. Haven't been able to get on site.Complete rundown on all guns returned to normal and pictures.
2 Colt M-4s bullet buttons had fully slotted pieces and were easily removed. No sign of loctite.
PTR-32 mag lock was already coming loose and ready to fall off. AK style release.
Sig 716 partially slotted part but removed easily.
S&W M&P 10 heavily loctited. Ended up drilling through magazine latch. Was able to fully restore ambi mag release with part from Numrich.
S&W M&P 15 also heavily loctited. Also drilled latch. All standard AR parts. No replacement issues.
Sig 556 heavily loctited. Required repeated heating (soldering iron) to get loose. Latch is different and not readily available so drilling was not a option.
Sig 556R saga noted above.
Happily no damage to guns. Used a lot of tape to protect finish. Only complaint, can't find parts to restore ambi release on Sig 716. Only Numrich lists them and out of stock.

[Tank 57]

Rest of pictures.