[Wildcatter]

I have a Form 4 pending on a 556 factory sbr. It has the folding collapsible stock and railed handguard. I want it to look a bit more like the 553. I bought a standard fixed/folder style stock but I want to change out the handguard.

Can I use the JMac adapter to install cut-down handguard from a 550? If not, is it possible to adapt 550 handguards to my rifle at all?

I guess if I can’t l, I’ll be looking for a plastic factory 556 handguard in patrol length and I’ll have a load of furniture for sale.

Thanks for any information to help me with this.

—-Catter

 

[Omegajb]

I don't think the 550 handguards taper enough to fit the gas block at the length you're looking for.

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[jeffmm1]

I have a Form 4 pending on a 556 factory sbr. It has the folding collapsible stock and railed handguard. I want it to look a bit more like the 553. I bought a standard fixed/folder style stock but I want to change out the handguard.

Can I use the JMac adapter to install cut-down handguard from a 550? If not, is it possible to adapt 550 handguards to my rifle at all?

I guess if I can’t l, I’ll be looking for a plastic factory 556 handguard in patrol length and I’ll have a load of furniture for sale.

Thanks for any information to help me with this.

—-Catter

Agree with Omegajb. There is an open box 556 pistol Swat one piece rail system on Botach for $99. This would look really nice on your 556 pistol if you like that style of handguard. Good luck!

Open Box 1 Pc KZ SIG P556 Pistol Rail System

We offer the latest & greatest gear at the lowest prices online. Serving those who protect our great country.

botach.com

 

[jeffmm1]

I have a Form 4 pending on a 556 factory sbr. It has the folding collapsible stock and railed handguard. I want it to look a bit more like the 553. I bought a standard fixed/folder style stock but I want to change out the handguard.

Can I use the JMac adapter to install cut-down handguard from a 550? If not, is it possible to adapt 550 handguards to my rifle at all?

I guess if I can’t l, I’ll be looking for a plastic factory 556 handguard in patrol length and I’ll have a load of furniture for sale.

Thanks for any information to help me with this.

—-Catter

Okay never mind. I see your 556 already has the rail : )

 

[Omegajb]

Maybe I was wrong, this guy seemed to be able to cut down a full size handguard.

DIY Swiss style hand guards for the SIG 551A1 SBR

I wanted the correct Swiss Army look on my SIG 551A1 SBR. (like their Stgw 07 / SIG 553 rifles) So I changed the black buttstock to a Swiss OD Green buttstock and replaced the pistol grip with an original Swiss OD Green pistol grip. Also added a Swiss Army sling and an Eotech 512. The hand...

www.sigtalk.com

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[ying pow]

Yes - that is what I did years ago. You need the correct 552 hand guard collar for the front of the cut down handguards. The 552/3 handguards are too short - that is why you have to cut the long ones down.
I got mine from www.thegunfactory.ch.

 

[Wildcatter]

So the JMac adapter is the correct part for adapting the original 550 handguards to the 556 length? Wonderful! Thank you very much!

 

[Basenji]

I did mine years ago and I'm sorry but I can't recall how I did it. I do have the correct hand guard collar, but I can't remember where I got that either.

 

[Wildcatter]

I fitted out my factory SBR in a manner that suits me. I’m selling off my extra parts in the for sale forum.

Thanks for your help

WC