Part to convert a Sig556 SWAT old version to new version with folding stock

Status
Not open for further replies.

.cheese.

Member
Joined
Feb 13, 2007
Messages
3,808
I am sure there is a part to convert a Sig556 SWAT with the standard collapsible stock to the new one with the collapsible AND folding stock.

What is it (or "are they)?
 
I was just comparing a Sig556 Classic with the regular version with the AR style stock and the lower receiver stock mounting area is completely different. Unless someone makes an adapter, and I doubt they do, you would have to get a new lower.
 
Last edited:
Yeah, there's a part.

It's called an original Swiss lower receiver, and it costs somewhere between $1000 and $2000 USD.

Thanks Sig!
 
Not the Classic style folding stock.

I'm talking the regular AR style stock that collapses and folds.

Regular 556 SWAT:

556-SWAT-detail-R.jpg


Folding old style stock:

556-SWAT-detail-NRA.jpg


The old version was more or less the same stock, just it didn't fold. I've got 2 of those coming in next week.

The Classic style stock is entirely different:

556-CSWAT-detail-R1.jpg
 
Found one. Not sure if this is original Sig OEM, or by the same provider they use:

cd0f07ba49b73b85c6e03bb833c03a57.jpg
 
Found more at Ace Rifle Stocks:

Can just buy the whole stock:

arrb.m4m.fs.jpg


Or just a block:

FSM.PB.JPG
 
So, a Google search shows that there are parts. What I want to know is what does Sig supply standard with the new Sig 556 SWAT (note: not the Classic SWAT)

Sig supplies a Magpul CTR stock.

What is it that they supply to make it fold? Is it made by Magpul too? Anybody know what is the provider behind the Sig OEM part?
 
The OEM folding adapter is made by iTac, which is a SIG-owned subsidiary that manufactures/imports firearm accessories and parts from China, as best as I can tell.

The AR-threaded folding adaptor can be ordered directly off of the Sig website, although to be perfectly honest I don't know why you'd want it, as it's unequivocably a piece of crap. The newer production pieces have had fewer problems, but they're still widely known for breaking in various ways.

Go buy an Ace adaptor like the one shown above, and stick a CTR or MOE stock on it.
 
Ok.

New question. What neurological condition would explain looking multiple times under "Parts & Tools" on the Sig site and not seeing that part?

How did I miss that?

Wouldn't have known that it's not very good though. What's wrong with them? Bad design? Sub-standard metal?
 
Status
Not open for further replies.
Back
Top