SIG 228 Roll Pin Question

[JDM]

I have a W. German SIG 228, and about every 300 rounds the roll pin retaining the firing pin in the slide (unsure of the exact name) starts to walk out of the slide; this is obviously unsatisfactory.

I'm curious what tool(s) I need to replace that dual roll pin setup, and the exact procedure involved.

Thanks!

[ToddG]

A roll pin punch and hammer is all you need.

[JDM]

Thanks, Todd!

[CCT125US]

Try this setup from Grainger. Notice the pin punches have a "tit" on the end to keep the punch from slipping off and deforming the pin or damaging the gun. This of course will not work on solid pins. Here is a link in the right direction.

http://m.grainger.com/mobile/details/?R=1Q754

And what Todd said....

[JDM]

Try this setup from Grainger. Notice the pin punches have a "tit" on the end to keep the punch from slipping off and deforming the pin or damaging the gun. This of course will not work on solid pins. Here is a link in the right direction.

http://m.grainger.com/mobile/details/?R=1Q754

And what Todd said....

I have that exact roll pin punch set...weird.

[NEPAKevin]

It is also helpful to have either a non-marring spacer with a hole in it for when you drive the pins through the slide or a hole pre-drilled in your work bench. There is a gun smith's block for this purpose that is made of hard rubber and in the old ARS "Gunplumber" video, Mark Graham made one out of a hockey puck. FWIW, a block of wood or a sturdy plastic ammo box will work almost as well.

[John Hearne]

You drive the old pins out as one unit. To install the new one, start with the outer pin. Orient the gap to 12:00. Get it barely started and then stop. Push the firing pin forward then drive the big pin in half way. Next, start the small pin in, orienting its gap to 6:00. Drive the small pin in until it's flush with the outer. Finish by driving the two pins flush together.

Be careful about the start, you can damage the firing pin if you don't push it forward.

[JDM]

Thank you both. Great info. The package of parts from Top Gun Supply should be here tomorrow. If I get stuck I'll be back with more questions.

[taadski]

Be careful about the start, you can damage the firing pin if you don't push it forward.

Depending on where the old pin broke this can be an issue during the removal process too. On one occasion, I spent some time tapping away only to realize half the positioning pin was hitting the firing pin.


T

[JDM]

Does anyone know the proper name for the pin in question?

[John Ralston]

Does anyone know the proper name for the pin in question?

SIG's terminology?

I believe Sig refers to it as the Breech Block Pin

[JDM]

Yes. How do they call that set of pins?

[NEPAKevin]

Does anyone know the proper name for the pin in question?

The pins you are replacing are the Firing Pin Retaining Pin, Inner and Outer:
Numrich Gun Parts has schematics for many guns posted on their online catalog:
http://www.gunpartscorp.com/catalog/Products.aspx?catid=8672

[taadski]

Does anyone know the proper name for the pin in question?

Firing pin positioning pin (FPPP).

[JDM]

Geniuses. The lot of you.

[NEPAKevin]

If it is of any interest, the old P226 Armorer's Manual is online on Biggerhammer.net. If it asks, the username is "manuals" and the password is "chipin"
http://www.biggerhammer.net/manuals/pdfs/sig_sauer_p226_armorers_manual.pdf
edited to add, the CDs that Topgun has by the Chris's are much better.

[JDM]

If it is of any interest, the old P226 Armorer's Manual is online on Biggerhammer.net. If it asks, the username is "manuals" and the password is "chipin"
http://www.biggerhammer.net/manuals/pdfs/sig_sauer_p226_armorers_manual.pdf
edited to add, the CDs that Topgun has by the Chris's are much better.

Sweet. Thanks for that.

I went to a plastic supply place today and got an 18x8 inch chunk of polycarbonate that's about 2 inches thick to serve as my armorers block.

[taadski]

Brownells also has a bunch of factory schematics.

http://www.brownells.com/.aspx/mid=118/schematics/Sig-Sauer-

Just for everyone's general info.


T

[JDM]

Got the pins switched out. I'll shoot the gun in th next few days and see if the problem is solved.

Thanks again for everyones help!