SIGforum
Any 556 Owners Still Around

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/630601935/m/7380078324

January 05, 2026, 09:07 PM
neverenoughguns
Any 556 Owners Still Around
I have one of the green commando 556 that came with the green magpul stock. Only later did they introduce US available/affordable versions w the cool Swiss stock. Does anyone know of a straight forward method for swapping out to a Swiss looking stock without swapping out the lower?
January 06, 2026, 06:37 AM
PGT
Short answer; no. AGP Arms makes a decently styled stock that sort of replicates the lines but works on original M4 style lowers (but it’s black)
January 06, 2026, 09:43 AM
JonDaddy82
Welp, funny turn of events. I had a night 2 gun match scheduled.

I need to send my current favorite Bren 2's back to CZ. My second favorite SCAR 16 needs to be re-zeroed. Crap...what do I shoot?

The good ol' Sig 556 SWAT Patrol winks at me from the back of the safe. My first black rifle. My trusty steed in all it's quad rail glory. Aimpoint Micro steadfast it in vintage LaRue mount. Surefire light charged and ready to go.

Bottom line, she ran great. Finished mid pack against all the Gucci AR's. Many people of course wondering what in the hell it even is!


IDPA ESP SS
January 06, 2026, 03:54 PM
old rugged cross
^^^^^^^^^^^^^Nice Wink



"Practice like you want to play in the game"
January 07, 2026, 09:46 AM
Rick Lee
I think it might be time to buy my first silencer and it will be for my SBR'ed P556. What do you guys suggest? What's the thread pitch for these? Really want an FRT or Super Safety for it too.


Freewill Firearms
07 FFL, Class 2 SOT
January 07, 2026, 10:14 AM
P220 Smudge
quote:
Originally posted by Rick Lee:
I think it might be time to buy my first silencer and it will be for my SBR'ed P556. What do you guys suggest? What's the thread pitch for these? Really want an FRT or Super Safety for it too.


https://stealthadditive.com/ti...5-56-6mm-suppressor/

https://pewscience.com/sound-s...9-saw-tisha-mk18-556

Nothing on the market currently even comes close. It smokes everything in every metric. HUB compatible, but comes with a mount and a muzzle device. No-brainer, here.


______________________________________________
"If the truth shall kill them, let them die.”

Endeavoring to master the subtle art of the grapefruit spoon.
January 07, 2026, 10:24 AM
Rick Lee
Geezus, that's more than I paid for the gun.


Freewill Firearms
07 FFL, Class 2 SOT
January 07, 2026, 10:38 AM
blfuller
quote:
Originally posted by Rick Lee:
What's the thread pitch for these?


SIG556 has a 1/2x28 thread.