Done

[SmashedPrimer]

Done

[ggarcia68]

It's called the fcu or fire control unit which is actually considered the gun. Only way you can get it in California is through a ppt.

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[Palmaris]

A little late on asking this i know, but does anyone know where I can find the internal lower parts for a sig 250? I have the complete slide,, the grip frame, and the metal insert module, but nothing that goes the metal insert.

Please advise?

I am not clear what you call metal insert module. Can you post pic of it? Sound like FCU frame. Does it have serial number somewhere? If you have serialized FCU frame, you will just need part kit to finish FCU assembly, if it is unfinished (AKA 80%), you need to consult with law what should you do.

[GoingQuiet]

A little late on asking this i know, but does anyone know where I can find the internal lower parts for a sig 250? I have the complete slide,, the grip frame, and the metal insert module, but nothing that goes the metal insert.

Please advise?

What's it worth to you?

[GoingQuiet]

I am not clear what you call metal insert module. Can you post pic of it? Sound like FCU frame. Does it have serial number somewhere? If you have serialized FCU frame, you will just need part kit to finish FCU assembly, if it is unfinished (AKA 80%), you need to consult with law what should you do.

P250 is predecessor to P320. You're on the right track.

[GoingQuiet]

It's called the fcu or fire control unit which is actually considered the gun. Only way you can get it in California is through a ppt.

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I can make that into a rifle receiver with enough money.

[SkyHawk]

It sounds like he has a stripped FCU. Here are some of the parts for it, but many not there either

https://www.midwestgunworks.com/sig-sauer-p250/parts.html

Numrich looks to have some more of them but still not all

https://www.gunpartscorp.com/gun-manufacturer/sig-sauer/auto-pistols-sig/p250

Looks like they have everything but hammer and safety lever. You may have a hard time finding those two parts. I checked the usual sources and came up empty.

Have you considered converting this to a P320 FCU? It can be done, check this thread https://www.calguns.net/calgunforum/...php?p=22975366

[Pupulepeter]

You can convert the P250 to a p320 relatively easily like SkyHawk said. That would give you ongoing opportunity to upgrade and find parts more easily. Especially since the military adopted the platform.

[SmashedPrimer]

From what I understand the FCU iIS the gun, yes, but it is essentially a metal insert with the trigger components in it....sort of like a drop in AR trigger unit... however as 80% you get the metal insert, but no trigger components to go into it... so its not quite a complete FCU yet.

Yes it has a serial on it. But I have the serialized portion without the "guts".

I'm looking for those parts that go inside it.

[SmashedPrimer]

Yes I might have to convert to 320 if I cannot find the operating components for the fcu frame. I am still looking though.